Home / 454,005,491.40-681,008,237.10-126,531,547.20

Finding the Fourth Proportional to 454,005,491.40, 681,008,237.10 and 126,531,547.20

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Solution

The fourth proportional to 454,005,491.40, 681,008,237.10 and 126,531,547.20 is: 189,797,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,005,491.40 : 681,008,237.10 = 126,531,547.20 : x
  2. Step 2: Convert to fraction form
    454,005,491.40/681,008,237.10 = 126,531,547.20/x
  3. Step 3: Cross multiply
    454,005,491.40x = 681,008,237.10 × 126,531,547.20
  4. Step 4: Simplify right side
    454,005,491.40x = 86,169,025,896,207,440
  5. Step 5: Solve for x
    x = 86,169,025,896,207,440/454,005,491.40
  6. Step 6: Final answer
    x = 189,797,320.80

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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.