Home / 31,942,431.96-47,921,711.34-8,913,347.16

Finding the Fourth Proportional to 31,942,431.96, 47,921,711.34 and 8,913,347.16

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Solution

The fourth proportional to 31,942,431.96, 47,921,711.34 and 8,913,347.16 is: 13,372,270.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,942,431.96 : 47,921,711.34 = 8,913,347.16 : x
  2. Step 2: Convert to fraction form
    31,942,431.96/47,921,711.34 = 8,913,347.16/x
  3. Step 3: Cross multiply
    31,942,431.96x = 47,921,711.34 × 8,913,347.16
  4. Step 4: Simplify right side
    31,942,431.96x = 427,142,849,674,728.81
  5. Step 5: Solve for x
    x = 427,142,849,674,728.81/31,942,431.96
  6. Step 6: Final answer
    x = 13,372,270.78

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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.