Home / 485,336,666.28-726,849,405.23-309,916,338.96

Finding the Fourth Proportional to 485,336,666.28, 726,849,405.23 and 309,916,338.96

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Solution

The fourth proportional to 485,336,666.28, 726,849,405.23 and 309,916,338.96 is: 464,136,592.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,336,666.28 : 726,849,405.23 = 309,916,338.96 : x
  2. Step 2: Convert to fraction form
    485,336,666.28/726,849,405.23 = 309,916,338.96/x
  3. Step 3: Cross multiply
    485,336,666.28x = 726,849,405.23 × 309,916,338.96
  4. Step 4: Simplify right side
    485,336,666.28x = 225,262,506,642,585,472
  5. Step 5: Solve for x
    x = 225,262,506,642,585,472/485,336,666.28
  6. Step 6: Final answer
    x = 464,136,592.79

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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.