Home / 125,129,762.74-172,689,298.41-69,392,638.90

Finding the Fourth Proportional to 125,129,762.74, 172,689,298.41 and 69,392,638.90

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Solution

The fourth proportional to 125,129,762.74, 172,689,298.41 and 69,392,638.90 is: 95,767,512.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,129,762.74 : 172,689,298.41 = 69,392,638.90 : x
  2. Step 2: Convert to fraction form
    125,129,762.74/172,689,298.41 = 69,392,638.90/x
  3. Step 3: Cross multiply
    125,129,762.74x = 172,689,298.41 × 69,392,638.90
  4. Step 4: Simplify right side
    125,129,762.74x = 11,983,366,126,459,474
  5. Step 5: Solve for x
    x = 11,983,366,126,459,474/125,129,762.74
  6. Step 6: Final answer
    x = 95,767,512.57

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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.