Home / 1,210,087,729.28-1,670,006,585.45-674,274,962.76

Finding the Fourth Proportional to 1,210,087,729.28, 1,670,006,585.45 and 674,274,962.76

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Solution

The fourth proportional to 1,210,087,729.28, 1,670,006,585.45 and 674,274,962.76 is: 930,547,100.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,087,729.28 : 1,670,006,585.45 = 674,274,962.76 : x
  2. Step 2: Convert to fraction form
    1,210,087,729.28/1,670,006,585.45 = 674,274,962.76/x
  3. Step 3: Cross multiply
    1,210,087,729.28x = 1,670,006,585.45 × 674,274,962.76
  4. Step 4: Simplify right side
    1,210,087,729.28x = 1,126,043,628,208,760,192
  5. Step 5: Solve for x
    x = 1,126,043,628,208,760,192/1,210,087,729.28
  6. Step 6: Final answer
    x = 930,547,100.81

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Half scale
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Double scale
Find fourth proportional to 1,210,087,730.28, 1,670,006,586.83 and 674,274,963.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.