Home / 144,612,669.72-199,564,867.15-78,532,705.29

Finding the Fourth Proportional to 144,612,669.72, 199,564,867.15 and 78,532,705.29

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Solution

The fourth proportional to 144,612,669.72, 199,564,867.15 and 78,532,705.29 is: 108,374,798.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,612,669.72 : 199,564,867.15 = 78,532,705.29 : x
  2. Step 2: Convert to fraction form
    144,612,669.72/199,564,867.15 = 78,532,705.29/x
  3. Step 3: Cross multiply
    144,612,669.72x = 199,564,867.15 × 78,532,705.29
  4. Step 4: Simplify right side
    144,612,669.72x = 15,672,368,898,128,954
  5. Step 5: Solve for x
    x = 15,672,368,898,128,954/144,612,669.72
  6. Step 6: Final answer
    x = 108,374,798.20

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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.