Home / 30,635,857.60-45,890,800.80-21,062,046.40

Finding the Fourth Proportional to 30,635,857.60, 45,890,800.80 and 21,062,046.40

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Solution

The fourth proportional to 30,635,857.60, 45,890,800.80 and 21,062,046.40 is: 31,549,767.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,635,857.60 : 45,890,800.80 = 21,062,046.40 : x
  2. Step 2: Convert to fraction form
    30,635,857.60/45,890,800.80 = 21,062,046.40/x
  3. Step 3: Cross multiply
    30,635,857.60x = 45,890,800.80 × 21,062,046.40
  4. Step 4: Simplify right side
    30,635,857.60x = 966,554,175,782,757
  5. Step 5: Solve for x
    x = 966,554,175,782,757/30,635,857.60
  6. Step 6: Final answer
    x = 31,549,767.22

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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.