Home / 442,870,680.30-664,306,020.45-328,079,424.30

Finding the Fourth Proportional to 442,870,680.30, 664,306,020.45 and 328,079,424.30

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Solution

The fourth proportional to 442,870,680.30, 664,306,020.45 and 328,079,424.30 is: 492,119,136.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,870,680.30 : 664,306,020.45 = 328,079,424.30 : x
  2. Step 2: Convert to fraction form
    442,870,680.30/664,306,020.45 = 328,079,424.30/x
  3. Step 3: Cross multiply
    442,870,680.30x = 664,306,020.45 × 328,079,424.30
  4. Step 4: Simplify right side
    442,870,680.30x = 217,945,136,748,260,064
  5. Step 5: Solve for x
    x = 217,945,136,748,260,064/442,870,680.30
  6. Step 6: Final answer
    x = 492,119,136.45

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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.