Home / 57,109,901.06-78,812,579.22-31,004,398.10

Finding the Fourth Proportional to 57,109,901.06, 78,812,579.22 and 31,004,398.10

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Solution

The fourth proportional to 57,109,901.06, 78,812,579.22 and 31,004,398.10 is: 42,786,566.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,109,901.06 : 78,812,579.22 = 31,004,398.10 : x
  2. Step 2: Convert to fraction form
    57,109,901.06/78,812,579.22 = 31,004,398.10/x
  3. Step 3: Cross multiply
    57,109,901.06x = 78,812,579.22 × 31,004,398.10
  4. Step 4: Simplify right side
    57,109,901.06x = 2,443,536,581,424,667.50
  5. Step 5: Solve for x
    x = 2,443,536,581,424,667.50/57,109,901.06
  6. Step 6: Final answer
    x = 42,786,566.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.