Home / 83,219,831.20-124,829,746.80-73,142,135.20

Finding the Fourth Proportional to 83,219,831.20, 124,829,746.80 and 73,142,135.20

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Solution

The fourth proportional to 83,219,831.20, 124,829,746.80 and 73,142,135.20 is: 109,713,202.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,219,831.20 : 124,829,746.80 = 73,142,135.20 : x
  2. Step 2: Convert to fraction form
    83,219,831.20/124,829,746.80 = 73,142,135.20/x
  3. Step 3: Cross multiply
    83,219,831.20x = 124,829,746.80 × 73,142,135.20
  4. Step 4: Simplify right side
    83,219,831.20x = 9,130,314,217,427,368
  5. Step 5: Solve for x
    x = 9,130,314,217,427,368/83,219,831.20
  6. Step 6: Final answer
    x = 109,713,202.80

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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.