Home / 38,148,938.30-57,226,906.65-12,590,003.90

Finding the Fourth Proportional to 38,148,938.30, 57,226,906.65 and 12,590,003.90

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Solution

The fourth proportional to 38,148,938.30, 57,226,906.65 and 12,590,003.90 is: 18,886,160.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,148,938.30 : 57,226,906.65 = 12,590,003.90 : x
  2. Step 2: Convert to fraction form
    38,148,938.30/57,226,906.65 = 12,590,003.90/x
  3. Step 3: Cross multiply
    38,148,938.30x = 57,226,906.65 × 12,590,003.90
  4. Step 4: Simplify right side
    38,148,938.30x = 720,486,977,908,436
  5. Step 5: Solve for x
    x = 720,486,977,908,436/38,148,938.30
  6. Step 6: Final answer
    x = 18,886,160.66

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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.