Home / 138,983,909.76-208,477,469.52-41,940,457.92

Finding the Fourth Proportional to 138,983,909.76, 208,477,469.52 and 41,940,457.92

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Solution

The fourth proportional to 138,983,909.76, 208,477,469.52 and 41,940,457.92 is: 62,911,171.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,983,909.76 : 208,477,469.52 = 41,940,457.92 : x
  2. Step 2: Convert to fraction form
    138,983,909.76/208,477,469.52 = 41,940,457.92/x
  3. Step 3: Cross multiply
    138,983,909.76x = 208,477,469.52 × 41,940,457.92
  4. Step 4: Simplify right side
    138,983,909.76x = 8,743,640,537,671,643
  5. Step 5: Solve for x
    x = 8,743,640,537,671,643/138,983,909.76
  6. Step 6: Final answer
    x = 62,911,171.18

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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.