Home / 391,810,669.52-587,716,001.04-142,834,598.72

Finding the Fourth Proportional to 391,810,669.52, 587,716,001.04 and 142,834,598.72

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Solution

The fourth proportional to 391,810,669.52, 587,716,001.04 and 142,834,598.72 is: 214,251,896.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,810,669.52 : 587,716,001.04 = 142,834,598.72 : x
  2. Step 2: Convert to fraction form
    391,810,669.52/587,716,001.04 = 142,834,598.72/x
  3. Step 3: Cross multiply
    391,810,669.52x = 587,716,001.04 × 142,834,598.72
  4. Step 4: Simplify right side
    391,810,669.52x = 83,946,179,169,871,504
  5. Step 5: Solve for x
    x = 83,946,179,169,871,504/391,810,669.52
  6. Step 6: Final answer
    x = 214,251,896.90

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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.