Home / 83,219,807.20-124,829,710.80-73,142,111.20

Finding the Fourth Proportional to 83,219,807.20, 124,829,710.80 and 73,142,111.20

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Solution

The fourth proportional to 83,219,807.20, 124,829,710.80 and 73,142,111.20 is: 109,713,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,219,807.20 : 124,829,710.80 = 73,142,111.20 : x
  2. Step 2: Convert to fraction form
    83,219,807.20/124,829,710.80 = 73,142,111.20/x
  3. Step 3: Cross multiply
    83,219,807.20x = 124,829,710.80 × 73,142,111.20
  4. Step 4: Simplify right side
    83,219,807.20x = 9,130,308,588,397,442
  5. Step 5: Solve for x
    x = 9,130,308,588,397,442/83,219,807.20
  6. Step 6: Final answer
    x = 109,713,166.80

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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.