Home / 498,811,209.22-688,208,277.18-348,099,856.12

Finding the Fourth Proportional to 498,811,209.22, 688,208,277.18 and 348,099,856.12

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Solution

The fourth proportional to 498,811,209.22, 688,208,277.18 and 348,099,856.12 is: 480,272,291.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,811,209.22 : 688,208,277.18 = 348,099,856.12 : x
  2. Step 2: Convert to fraction form
    498,811,209.22/688,208,277.18 = 348,099,856.12/x
  3. Step 3: Cross multiply
    498,811,209.22x = 688,208,277.18 × 348,099,856.12
  4. Step 4: Simplify right side
    498,811,209.22x = 239,565,202,266,951,072
  5. Step 5: Solve for x
    x = 239,565,202,266,951,072/498,811,209.22
  6. Step 6: Final answer
    x = 480,272,291.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.