Home / 57,004,417.71-78,663,988.89-30,898,375.11

Finding the Fourth Proportional to 57,004,417.71, 78,663,988.89 and 30,898,375.11

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Solution

The fourth proportional to 57,004,417.71, 78,663,988.89 and 30,898,375.11 is: 42,638,615.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,004,417.71 : 78,663,988.89 = 30,898,375.11 : x
  2. Step 2: Convert to fraction form
    57,004,417.71/78,663,988.89 = 30,898,375.11/x
  3. Step 3: Cross multiply
    57,004,417.71x = 78,663,988.89 × 30,898,375.11
  4. Step 4: Simplify right side
    57,004,417.71x = 2,430,589,436,372,092.50
  5. Step 5: Solve for x
    x = 2,430,589,436,372,092.50/57,004,417.71
  6. Step 6: Final answer
    x = 42,638,615.29

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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.