Home / 56,881,211.61-78,495,513.96-30,775,156.65

Finding the Fourth Proportional to 56,881,211.61, 78,495,513.96 and 30,775,156.65

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Solution

The fourth proportional to 56,881,211.61, 78,495,513.96 and 30,775,156.65 is: 42,469,414.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,881,211.61 : 78,495,513.96 = 30,775,156.65 : x
  2. Step 2: Convert to fraction form
    56,881,211.61/78,495,513.96 = 30,775,156.65/x
  3. Step 3: Cross multiply
    56,881,211.61x = 78,495,513.96 × 30,775,156.65
  4. Step 4: Simplify right side
    56,881,211.61x = 2,415,711,738,441,261.50
  5. Step 5: Solve for x
    x = 2,415,711,738,441,261.50/56,881,211.61
  6. Step 6: Final answer
    x = 42,469,414.24

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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.