Home / 1,330,685,721.30-1,996,028,581.95-986,311,953.30

Finding the Fourth Proportional to 1,330,685,721.30, 1,996,028,581.95 and 986,311,953.30

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Solution

The fourth proportional to 1,330,685,721.30, 1,996,028,581.95 and 986,311,953.30 is: 1,479,467,929.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,685,721.30 : 1,996,028,581.95 = 986,311,953.30 : x
  2. Step 2: Convert to fraction form
    1,330,685,721.30/1,996,028,581.95 = 986,311,953.30/x
  3. Step 3: Cross multiply
    1,330,685,721.30x = 1,996,028,581.95 × 986,311,953.30
  4. Step 4: Simplify right side
    1,330,685,721.30x = 1,968,706,849,505,733,632
  5. Step 5: Solve for x
    x = 1,968,706,849,505,733,632/1,330,685,721.30
  6. Step 6: Final answer
    x = 1,479,467,929.95

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.