Home / 20,921,569.60-31,382,354.40-7,453,537.60

Finding the Fourth Proportional to 20,921,569.60, 31,382,354.40 and 7,453,537.60

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Solution

The fourth proportional to 20,921,569.60, 31,382,354.40 and 7,453,537.60 is: 11,180,306.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,921,569.60 : 31,382,354.40 = 7,453,537.60 : x
  2. Step 2: Convert to fraction form
    20,921,569.60/31,382,354.40 = 7,453,537.60/x
  3. Step 3: Cross multiply
    20,921,569.60x = 31,382,354.40 × 7,453,537.60
  4. Step 4: Simplify right side
    20,921,569.60x = 233,909,558,496,925.41
  5. Step 5: Solve for x
    x = 233,909,558,496,925.41/20,921,569.60
  6. Step 6: Final answer
    x = 11,180,306.40

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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.