Home / 125,500,509.35-173,136,979.95-78,375,770.23

Finding the Fourth Proportional to 125,500,509.35, 173,136,979.95 and 78,375,770.23

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Solution

The fourth proportional to 125,500,509.35, 173,136,979.95 and 78,375,770.23 is: 108,125,012.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,500,509.35 : 173,136,979.95 = 78,375,770.23 : x
  2. Step 2: Convert to fraction form
    125,500,509.35/173,136,979.95 = 78,375,770.23/x
  3. Step 3: Cross multiply
    125,500,509.35x = 173,136,979.95 × 78,375,770.23
  4. Step 4: Simplify right side
    125,500,509.35x = 13,569,744,157,619,752
  5. Step 5: Solve for x
    x = 13,569,744,157,619,752/125,500,509.35
  6. Step 6: Final answer
    x = 108,125,012.62

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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.