Home / 77,252,045.70-115,966,542.15-45,357,312.90

Finding the Fourth Proportional to 77,252,045.70, 115,966,542.15 and 45,357,312.90

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Solution

The fourth proportional to 77,252,045.70, 115,966,542.15 and 45,357,312.90 is: 68,087,915.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,252,045.70 : 115,966,542.15 = 45,357,312.90 : x
  2. Step 2: Convert to fraction form
    77,252,045.70/115,966,542.15 = 45,357,312.90/x
  3. Step 3: Cross multiply
    77,252,045.70x = 115,966,542.15 × 45,357,312.90
  4. Step 4: Simplify right side
    77,252,045.70x = 5,259,930,738,228,589
  5. Step 5: Solve for x
    x = 5,259,930,738,228,589/77,252,045.70
  6. Step 6: Final answer
    x = 68,087,915.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.