Home / 21,581,549.40-32,367,140.10-12,463,930.20

Finding the Fourth Proportional to 21,581,549.40, 32,367,140.10 and 12,463,930.20

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Solution

The fourth proportional to 21,581,549.40, 32,367,140.10 and 12,463,930.20 is: 18,692,901.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581,549.40 : 32,367,140.10 = 12,463,930.20 : x
  2. Step 2: Convert to fraction form
    21,581,549.40/32,367,140.10 = 12,463,930.20/x
  3. Step 3: Cross multiply
    21,581,549.40x = 32,367,140.10 × 12,463,930.20
  4. Step 4: Simplify right side
    21,581,549.40x = 403,421,774,980,021
  5. Step 5: Solve for x
    x = 403,421,774,980,021/21,581,549.40
  6. Step 6: Final answer
    x = 18,692,901.40

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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.