Home / 129,302,746.20-178,435,299.85-70,565,831.70

Finding the Fourth Proportional to 129,302,746.20, 178,435,299.85 and 70,565,831.70

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Solution

The fourth proportional to 129,302,746.20, 178,435,299.85 and 70,565,831.70 is: 97,379,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,302,746.20 : 178,435,299.85 = 70,565,831.70 : x
  2. Step 2: Convert to fraction form
    129,302,746.20/178,435,299.85 = 70,565,831.70/x
  3. Step 3: Cross multiply
    129,302,746.20x = 178,435,299.85 × 70,565,831.70
  4. Step 4: Simplify right side
    129,302,746.20x = 12,591,435,338,686,522
  5. Step 5: Solve for x
    x = 12,591,435,338,686,522/129,302,746.20
  6. Step 6: Final answer
    x = 97,379,488.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.