Home / 72,614,128.80-108,921,193.20-66,567,511.20

Finding the Fourth Proportional to 72,614,128.80, 108,921,193.20 and 66,567,511.20

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Solution

The fourth proportional to 72,614,128.80, 108,921,193.20 and 66,567,511.20 is: 99,851,266.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,614,128.80 : 108,921,193.20 = 66,567,511.20 : x
  2. Step 2: Convert to fraction form
    72,614,128.80/108,921,193.20 = 66,567,511.20/x
  3. Step 3: Cross multiply
    72,614,128.80x = 108,921,193.20 × 66,567,511.20
  4. Step 4: Simplify right side
    72,614,128.80x = 7,250,612,748,258,364
  5. Step 5: Solve for x
    x = 7,250,612,748,258,364/72,614,128.80
  6. Step 6: Final answer
    x = 99,851,266.80

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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.