Home / 142,635,717.73-213,943,111.80-45,565,361.92

Finding the Fourth Proportional to 142,635,717.73, 213,943,111.80 and 45,565,361.92

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Solution

The fourth proportional to 142,635,717.73, 213,943,111.80 and 45,565,361.92 is: 68,344,699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,635,717.73 : 213,943,111.80 = 45,565,361.92 : x
  2. Step 2: Convert to fraction form
    142,635,717.73/213,943,111.80 = 45,565,361.92/x
  3. Step 3: Cross multiply
    142,635,717.73x = 213,943,111.80 × 45,565,361.92
  4. Step 4: Simplify right side
    142,635,717.73x = 9,748,395,319,458,024
  5. Step 5: Solve for x
    x = 9,748,395,319,458,024/142,635,717.73
  6. Step 6: Final answer
    x = 68,344,699.87

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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.