Home / 18,690,038.20-28,004,876.70-10,578,892.60

Finding the Fourth Proportional to 18,690,038.20, 28,004,876.70 and 10,578,892.60

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Solution

The fourth proportional to 18,690,038.20, 28,004,876.70 and 10,578,892.60 is: 15,851,256.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690,038.20 : 28,004,876.70 = 10,578,892.60 : x
  2. Step 2: Convert to fraction form
    18,690,038.20/28,004,876.70 = 10,578,892.60/x
  3. Step 3: Cross multiply
    18,690,038.20x = 28,004,876.70 × 10,578,892.60
  4. Step 4: Simplify right side
    18,690,038.20x = 296,260,582,885,542.38
  5. Step 5: Solve for x
    x = 296,260,582,885,542.38/18,690,038.20
  6. Step 6: Final answer
    x = 15,851,256.15

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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.