Home / 485,336,602.50-726,849,309.78-309,916,275.45

Finding the Fourth Proportional to 485,336,602.50, 726,849,309.78 and 309,916,275.45

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Solution

The fourth proportional to 485,336,602.50, 726,849,309.78 and 309,916,275.45 is: 464,136,497.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,336,602.50 : 726,849,309.78 = 309,916,275.45 : x
  2. Step 2: Convert to fraction form
    485,336,602.50/726,849,309.78 = 309,916,275.45/x
  3. Step 3: Cross multiply
    485,336,602.50x = 726,849,309.78 × 309,916,275.45
  4. Step 4: Simplify right side
    485,336,602.50x = 225,262,430,900,420,832
  5. Step 5: Solve for x
    x = 225,262,430,900,420,832/485,336,602.50
  6. Step 6: Final answer
    x = 464,136,497.72

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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.