Home / 659,126,836.10-988,690,254.15-368,889,191.30

Finding the Fourth Proportional to 659,126,836.10, 988,690,254.15 and 368,889,191.30

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Solution

The fourth proportional to 659,126,836.10, 988,690,254.15 and 368,889,191.30 is: 553,333,786.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,126,836.10 : 988,690,254.15 = 368,889,191.30 : x
  2. Step 2: Convert to fraction form
    659,126,836.10/988,690,254.15 = 368,889,191.30/x
  3. Step 3: Cross multiply
    659,126,836.10x = 988,690,254.15 × 368,889,191.30
  4. Step 4: Simplify right side
    659,126,836.10x = 364,717,148,299,584,960
  5. Step 5: Solve for x
    x = 364,717,148,299,584,960/659,126,836.10
  6. Step 6: Final answer
    x = 553,333,786.95

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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.