Home / 390,963,601.80-586,272,192.30-132,108,532.20

Finding the Fourth Proportional to 390,963,601.80, 586,272,192.30 and 132,108,532.20

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Solution

The fourth proportional to 390,963,601.80, 586,272,192.30 and 132,108,532.20 is: 198,104,269.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,963,601.80 : 586,272,192.30 = 132,108,532.20 : x
  2. Step 2: Convert to fraction form
    390,963,601.80/586,272,192.30 = 132,108,532.20/x
  3. Step 3: Cross multiply
    390,963,601.80x = 586,272,192.30 × 132,108,532.20
  4. Step 4: Simplify right side
    390,963,601.80x = 77,451,558,794,429,136
  5. Step 5: Solve for x
    x = 77,451,558,794,429,136/390,963,601.80
  6. Step 6: Final answer
    x = 198,104,269.65

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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.