Home / 21,261,641.40-31,892,462.10-20,001,929.40

Finding the Fourth Proportional to 21,261,641.40, 31,892,462.10 and 20,001,929.40

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Solution

The fourth proportional to 21,261,641.40, 31,892,462.10 and 20,001,929.40 is: 30,002,894.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261,641.40 : 31,892,462.10 = 20,001,929.40 : x
  2. Step 2: Convert to fraction form
    21,261,641.40/31,892,462.10 = 20,001,929.40/x
  3. Step 3: Cross multiply
    21,261,641.40x = 31,892,462.10 × 20,001,929.40
  4. Step 4: Simplify right side
    21,261,641.40x = 637,910,775,316,375.75
  5. Step 5: Solve for x
    x = 637,910,775,316,375.75/21,261,641.40
  6. Step 6: Final answer
    x = 30,002,894.10

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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.