Home / 115,119,570.60-172,768,901.13-80,350,095.15

Finding the Fourth Proportional to 115,119,570.60, 172,768,901.13 and 80,350,095.15

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Solution

The fourth proportional to 115,119,570.60, 172,768,901.13 and 80,350,095.15 is: 120,587,642.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,119,570.60 : 172,768,901.13 = 80,350,095.15 : x
  2. Step 2: Convert to fraction form
    115,119,570.60/172,768,901.13 = 80,350,095.15/x
  3. Step 3: Cross multiply
    115,119,570.60x = 172,768,901.13 × 80,350,095.15
  4. Step 4: Simplify right side
    115,119,570.60x = 13,881,997,644,756,444
  5. Step 5: Solve for x
    x = 13,881,997,644,756,444/115,119,570.60
  6. Step 6: Final answer
    x = 120,587,642.68

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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.