Home / 142,320,701.81-213,498,327.65-40,084,739.43

Finding the Fourth Proportional to 142,320,701.81, 213,498,327.65 and 40,084,739.43

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Solution

The fourth proportional to 142,320,701.81, 213,498,327.65 and 40,084,739.43 is: 60,131,974.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,320,701.81 : 213,498,327.65 = 40,084,739.43 : x
  2. Step 2: Convert to fraction form
    142,320,701.81/213,498,327.65 = 40,084,739.43/x
  3. Step 3: Cross multiply
    142,320,701.81x = 213,498,327.65 × 40,084,739.43
  4. Step 4: Simplify right side
    142,320,701.81x = 8,558,024,832,390,591
  5. Step 5: Solve for x
    x = 8,558,024,832,390,591/142,320,701.81
  6. Step 6: Final answer
    x = 60,131,974.64

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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.