Home / 123,520,683.40-185,155,053.90-72,376,376.20

Finding the Fourth Proportional to 123,520,683.40, 185,155,053.90 and 72,376,376.20

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Solution

The fourth proportional to 123,520,683.40, 185,155,053.90 and 72,376,376.20 is: 108,490,752.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,520,683.40 : 185,155,053.90 = 72,376,376.20 : x
  2. Step 2: Convert to fraction form
    123,520,683.40/185,155,053.90 = 72,376,376.20/x
  3. Step 3: Cross multiply
    123,520,683.40x = 185,155,053.90 × 72,376,376.20
  4. Step 4: Simplify right side
    123,520,683.40x = 13,400,851,836,397,678
  5. Step 5: Solve for x
    x = 13,400,851,836,397,678/123,520,683.40
  6. Step 6: Final answer
    x = 108,490,752.05

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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.