Home / 77,264,939.10-115,897,408.65-19,761,710.70

Finding the Fourth Proportional to 77,264,939.10, 115,897,408.65 and 19,761,710.70

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Solution

The fourth proportional to 77,264,939.10, 115,897,408.65 and 19,761,710.70 is: 29,642,566.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,264,939.10 : 115,897,408.65 = 19,761,710.70 : x
  2. Step 2: Convert to fraction form
    77,264,939.10/115,897,408.65 = 19,761,710.70/x
  3. Step 3: Cross multiply
    77,264,939.10x = 115,897,408.65 × 19,761,710.70
  4. Step 4: Simplify right side
    77,264,939.10x = 2,290,331,060,620,977.50
  5. Step 5: Solve for x
    x = 2,290,331,060,620,977.50/77,264,939.10
  6. Step 6: Final answer
    x = 29,642,566.05

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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.