Home / 487,780,498.92-731,814,478.84-196,497,730.92

Finding the Fourth Proportional to 487,780,498.92, 731,814,478.84 and 196,497,730.92

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Solution

The fourth proportional to 487,780,498.92, 731,814,478.84 and 196,497,730.92 is: 294,804,496.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,780,498.92 : 731,814,478.84 = 196,497,730.92 : x
  2. Step 2: Convert to fraction form
    487,780,498.92/731,814,478.84 = 196,497,730.92/x
  3. Step 3: Cross multiply
    487,780,498.92x = 731,814,478.84 × 196,497,730.92
  4. Step 4: Simplify right side
    487,780,498.92x = 143,799,884,546,462,352
  5. Step 5: Solve for x
    x = 143,799,884,546,462,352/487,780,498.92
  6. Step 6: Final answer
    x = 294,804,496.83

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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.