Home / 43,941,401.80-65,865,446.70-21,207,488.20

Finding the Fourth Proportional to 43,941,401.80, 65,865,446.70 and 21,207,488.20

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Solution

The fourth proportional to 43,941,401.80, 65,865,446.70 and 21,207,488.20 is: 31,788,714.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,941,401.80 : 65,865,446.70 = 21,207,488.20 : x
  2. Step 2: Convert to fraction form
    43,941,401.80/65,865,446.70 = 21,207,488.20/x
  3. Step 3: Cross multiply
    43,941,401.80x = 65,865,446.70 × 21,207,488.20
  4. Step 4: Simplify right side
    43,941,401.80x = 1,396,840,683,677,979
  5. Step 5: Solve for x
    x = 1,396,840,683,677,979/43,941,401.80
  6. Step 6: Final answer
    x = 31,788,714.66

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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.