Home / 343,357,906.80-515,128,098.60-149,186,002.80

Finding the Fourth Proportional to 343,357,906.80, 515,128,098.60 and 149,186,002.80

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Solution

The fourth proportional to 343,357,906.80, 515,128,098.60 and 149,186,002.80 is: 223,818,646.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,357,906.80 : 515,128,098.60 = 149,186,002.80 : x
  2. Step 2: Convert to fraction form
    343,357,906.80/515,128,098.60 = 149,186,002.80/x
  3. Step 3: Cross multiply
    343,357,906.80x = 515,128,098.60 × 149,186,002.80
  4. Step 4: Simplify right side
    343,357,906.80x = 76,849,901,960,098,288
  5. Step 5: Solve for x
    x = 76,849,901,960,098,288/343,357,906.80
  6. Step 6: Final answer
    x = 223,818,646.49

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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.