Home / 74,880,006.80-112,320,010.20-42,519,405.20

Finding the Fourth Proportional to 74,880,006.80, 112,320,010.20 and 42,519,405.20

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Solution

The fourth proportional to 74,880,006.80, 112,320,010.20 and 42,519,405.20 is: 63,779,107.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,880,006.80 : 112,320,010.20 = 42,519,405.20 : x
  2. Step 2: Convert to fraction form
    74,880,006.80/112,320,010.20 = 42,519,405.20/x
  3. Step 3: Cross multiply
    74,880,006.80x = 112,320,010.20 × 42,519,405.20
  4. Step 4: Simplify right side
    74,880,006.80x = 4,775,780,025,761,934
  5. Step 5: Solve for x
    x = 4,775,780,025,761,934/74,880,006.80
  6. Step 6: Final answer
    x = 63,779,107.80

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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.