Home / 115,119,553.60-172,768,875.63-80,350,078.15

Finding the Fourth Proportional to 115,119,553.60, 172,768,875.63 and 80,350,078.15

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Solution

The fourth proportional to 115,119,553.60, 172,768,875.63 and 80,350,078.15 is: 120,587,617.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,119,553.60 : 172,768,875.63 = 80,350,078.15 : x
  2. Step 2: Convert to fraction form
    115,119,553.60/172,768,875.63 = 80,350,078.15/x
  3. Step 3: Cross multiply
    115,119,553.60x = 172,768,875.63 × 80,350,078.15
  4. Step 4: Simplify right side
    115,119,553.60x = 13,881,992,658,758,132
  5. Step 5: Solve for x
    x = 13,881,992,658,758,132/115,119,553.60
  6. Step 6: Final answer
    x = 120,587,617.17

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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.