Home / 115,055,426.40-172,583,139.60-99,602,959.20

Finding the Fourth Proportional to 115,055,426.40, 172,583,139.60 and 99,602,959.20

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Solution

The fourth proportional to 115,055,426.40, 172,583,139.60 and 99,602,959.20 is: 149,404,438.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,055,426.40 : 172,583,139.60 = 99,602,959.20 : x
  2. Step 2: Convert to fraction form
    115,055,426.40/172,583,139.60 = 99,602,959.20/x
  3. Step 3: Cross multiply
    115,055,426.40x = 172,583,139.60 × 99,602,959.20
  4. Step 4: Simplify right side
    115,055,426.40x = 17,189,791,412,186,704
  5. Step 5: Solve for x
    x = 17,189,791,412,186,704/115,055,426.40
  6. Step 6: Final answer
    x = 149,404,438.80

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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.