Home / 1,180,087,178.34-1,628,477,624.52-651,439,818.12

Finding the Fourth Proportional to 1,180,087,178.34, 1,628,477,624.52 and 651,439,818.12

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Solution

The fourth proportional to 1,180,087,178.34, 1,628,477,624.52 and 651,439,818.12 is: 898,963,387.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,087,178.34 : 1,628,477,624.52 = 651,439,818.12 : x
  2. Step 2: Convert to fraction form
    1,180,087,178.34/1,628,477,624.52 = 651,439,818.12/x
  3. Step 3: Cross multiply
    1,180,087,178.34x = 1,628,477,624.52 × 651,439,818.12
  4. Step 4: Simplify right side
    1,180,087,178.34x = 1,060,855,167,529,798,400
  5. Step 5: Solve for x
    x = 1,060,855,167,529,798,400/1,180,087,178.34
  6. Step 6: Final answer
    x = 898,963,387.62

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Double scale
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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.