Home / 125,672,521.77-173,355,862.14-78,547,811.13

Finding the Fourth Proportional to 125,672,521.77, 173,355,862.14 and 78,547,811.13

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Solution

The fourth proportional to 125,672,521.77, 173,355,862.14 and 78,547,811.13 is: 108,350,841.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,672,521.77 : 173,355,862.14 = 78,547,811.13 : x
  2. Step 2: Convert to fraction form
    125,672,521.77/173,355,862.14 = 78,547,811.13/x
  3. Step 3: Cross multiply
    125,672,521.77x = 173,355,862.14 × 78,547,811.13
  4. Step 4: Simplify right side
    125,672,521.77x = 13,616,723,517,651,036
  5. Step 5: Solve for x
    x = 13,616,723,517,651,036/125,672,521.77
  6. Step 6: Final answer
    x = 108,350,841.74

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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.