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Finding the Fourth Proportional to 539,326,785.80, 808,990,178.70 and 533,952,014.60

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Solution

The fourth proportional to 539,326,785.80, 808,990,178.70 and 533,952,014.60 is: 800,928,021.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,326,785.80 : 808,990,178.70 = 533,952,014.60 : x
  2. Step 2: Convert to fraction form
    539,326,785.80/808,990,178.70 = 533,952,014.60/x
  3. Step 3: Cross multiply
    539,326,785.80x = 808,990,178.70 × 533,952,014.60
  4. Step 4: Simplify right side
    539,326,785.80x = 431,961,935,708,479,040
  5. Step 5: Solve for x
    x = 431,961,935,708,479,040/539,326,785.80
  6. Step 6: Final answer
    x = 800,928,021.90

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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.