Home / 21,141,059.40-31,711,589.10-18,058,701.60

Finding the Fourth Proportional to 21,141,059.40, 31,711,589.10 and 18,058,701.60

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Solution

The fourth proportional to 21,141,059.40, 31,711,589.10 and 18,058,701.60 is: 27,088,052.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141,059.40 : 31,711,589.10 = 18,058,701.60 : x
  2. Step 2: Convert to fraction form
    21,141,059.40/31,711,589.10 = 18,058,701.60/x
  3. Step 3: Cross multiply
    21,141,059.40x = 31,711,589.10 × 18,058,701.60
  4. Step 4: Simplify right side
    21,141,059.40x = 572,670,124,818,712.62
  5. Step 5: Solve for x
    x = 572,670,124,818,712.62/21,141,059.40
  6. Step 6: Final answer
    x = 27,088,052.40

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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.