Home / 10,142,392.86-15,177,223.31-8,780,849.89

Finding the Fourth Proportional to 10,142,392.86, 15,177,223.31 and 8,780,849.89

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Solution

The fourth proportional to 10,142,392.86, 15,177,223.31 and 8,780,849.89 is: 13,139,790.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,142,392.86 : 15,177,223.31 = 8,780,849.89 : x
  2. Step 2: Convert to fraction form
    10,142,392.86/15,177,223.31 = 8,780,849.89/x
  3. Step 3: Cross multiply
    10,142,392.86x = 15,177,223.31 × 8,780,849.89
  4. Step 4: Simplify right side
    10,142,392.86x = 133,268,919,616,127.98
  5. Step 5: Solve for x
    x = 133,268,919,616,127.98/10,142,392.86
  6. Step 6: Final answer
    x = 13,139,790.72

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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.