Home / 28,002,176.40-42,003,264.60-7,807,418.40

Finding the Fourth Proportional to 28,002,176.40, 42,003,264.60 and 7,807,418.40

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Solution

The fourth proportional to 28,002,176.40, 42,003,264.60 and 7,807,418.40 is: 11,711,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,002,176.40 : 42,003,264.60 = 7,807,418.40 : x
  2. Step 2: Convert to fraction form
    28,002,176.40/42,003,264.60 = 7,807,418.40/x
  3. Step 3: Cross multiply
    28,002,176.40x = 42,003,264.60 × 7,807,418.40
  4. Step 4: Simplify right side
    28,002,176.40x = 327,937,060,898,108.69
  5. Step 5: Solve for x
    x = 327,937,060,898,108.69/28,002,176.40
  6. Step 6: Final answer
    x = 11,711,127.60

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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.