Home / 123,828,897.29-170,873,720.88-72,899,652.38

Finding the Fourth Proportional to 123,828,897.29, 170,873,720.88 and 72,899,652.38

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Solution

The fourth proportional to 123,828,897.29, 170,873,720.88 and 72,899,652.38 is: 100,595,540.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,828,897.29 : 170,873,720.88 = 72,899,652.38 : x
  2. Step 2: Convert to fraction form
    123,828,897.29/170,873,720.88 = 72,899,652.38/x
  3. Step 3: Cross multiply
    123,828,897.29x = 170,873,720.88 × 72,899,652.38
  4. Step 4: Simplify right side
    123,828,897.29x = 12,456,634,852,784,212
  5. Step 5: Solve for x
    x = 12,456,634,852,784,212/123,828,897.29
  6. Step 6: Final answer
    x = 100,595,540.51

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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.