Home / 78,381,545.55-108,169,307.04-43,102,042.53

Finding the Fourth Proportional to 78,381,545.55, 108,169,307.04 and 43,102,042.53

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Solution

The fourth proportional to 78,381,545.55, 108,169,307.04 and 43,102,042.53 is: 59,482,344.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,381,545.55 : 108,169,307.04 = 43,102,042.53 : x
  2. Step 2: Convert to fraction form
    78,381,545.55/108,169,307.04 = 43,102,042.53/x
  3. Step 3: Cross multiply
    78,381,545.55x = 108,169,307.04 × 43,102,042.53
  4. Step 4: Simplify right side
    78,381,545.55x = 4,662,318,072,843,159
  5. Step 5: Solve for x
    x = 4,662,318,072,843,159/78,381,545.55
  6. Step 6: Final answer
    x = 59,482,344.22

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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.