Home / 78,492,335.18-108,318,342.89-43,685,020.04

Finding the Fourth Proportional to 78,492,335.18, 108,318,342.89 and 43,685,020.04

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Solution

The fourth proportional to 78,492,335.18, 108,318,342.89 and 43,685,020.04 is: 60,284,726.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,492,335.18 : 108,318,342.89 = 43,685,020.04 : x
  2. Step 2: Convert to fraction form
    78,492,335.18/108,318,342.89 = 43,685,020.04/x
  3. Step 3: Cross multiply
    78,492,335.18x = 108,318,342.89 × 43,685,020.04
  4. Step 4: Simplify right side
    78,492,335.18x = 4,731,888,979,416,862
  5. Step 5: Solve for x
    x = 4,731,888,979,416,862/78,492,335.18
  6. Step 6: Final answer
    x = 60,284,726.77

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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.