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Finding the Fourth Proportional to 398,582,407.60, 597,369,726.60 and 355,248,314.80

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Solution

The fourth proportional to 398,582,407.60, 597,369,726.60 and 355,248,314.80 is: 532,423,370.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,582,407.60 : 597,369,726.60 = 355,248,314.80 : x
  2. Step 2: Convert to fraction form
    398,582,407.60/597,369,726.60 = 355,248,314.80/x
  3. Step 3: Cross multiply
    398,582,407.60x = 597,369,726.60 × 355,248,314.80
  4. Step 4: Simplify right side
    398,582,407.60x = 212,214,588,687,186,752
  5. Step 5: Solve for x
    x = 212,214,588,687,186,752/398,582,407.60
  6. Step 6: Final answer
    x = 532,423,370.03

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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.