Home / 13,129,400.40-19,714,375.80-7,157,432.40

Finding the Fourth Proportional to 13,129,400.40, 19,714,375.80 and 7,157,432.40

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Solution

The fourth proportional to 13,129,400.40, 19,714,375.80 and 7,157,432.40 is: 10,747,201.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129,400.40 : 19,714,375.80 = 7,157,432.40 : x
  2. Step 2: Convert to fraction form
    13,129,400.40/19,714,375.80 = 7,157,432.40/x
  3. Step 3: Cross multiply
    13,129,400.40x = 19,714,375.80 × 7,157,432.40
  4. Step 4: Simplify right side
    13,129,400.40x = 141,104,312,096,695.94
  5. Step 5: Solve for x
    x = 141,104,312,096,695.94/13,129,400.40
  6. Step 6: Final answer
    x = 10,747,201.53

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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.