Home / 100,511,807.40-150,767,711.10-66,074,430.60

Finding the Fourth Proportional to 100,511,807.40, 150,767,711.10 and 66,074,430.60

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Solution

The fourth proportional to 100,511,807.40, 150,767,711.10 and 66,074,430.60 is: 99,111,645.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,511,807.40 : 150,767,711.10 = 66,074,430.60 : x
  2. Step 2: Convert to fraction form
    100,511,807.40/150,767,711.10 = 66,074,430.60/x
  3. Step 3: Cross multiply
    100,511,807.40x = 150,767,711.10 × 66,074,430.60
  4. Step 4: Simplify right side
    100,511,807.40x = 9,961,890,663,797,800
  5. Step 5: Solve for x
    x = 9,961,890,663,797,800/100,511,807.40
  6. Step 6: Final answer
    x = 99,111,645.90

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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.