Home / 72,292,700.48-99,761,128.56-39,252,193.38

Finding the Fourth Proportional to 72,292,700.48, 99,761,128.56 and 39,252,193.38

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Solution

The fourth proportional to 72,292,700.48, 99,761,128.56 and 39,252,193.38 is: 54,166,507.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,292,700.48 : 99,761,128.56 = 39,252,193.38 : x
  2. Step 2: Convert to fraction form
    72,292,700.48/99,761,128.56 = 39,252,193.38/x
  3. Step 3: Cross multiply
    72,292,700.48x = 99,761,128.56 × 39,252,193.38
  4. Step 4: Simplify right side
    72,292,700.48x = 3,915,843,110,044,161.50
  5. Step 5: Solve for x
    x = 3,915,843,110,044,161.50/72,292,700.48
  6. Step 6: Final answer
    x = 54,166,507.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.