Home / 57,109,948.48-78,812,644.80-31,004,445.44

Finding the Fourth Proportional to 57,109,948.48, 78,812,644.80 and 31,004,445.44

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Solution

The fourth proportional to 57,109,948.48, 78,812,644.80 and 31,004,445.44 is: 42,786,631.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,109,948.48 : 78,812,644.80 = 31,004,445.44 : x
  2. Step 2: Convert to fraction form
    57,109,948.48/78,812,644.80 = 31,004,445.44/x
  3. Step 3: Cross multiply
    57,109,948.48x = 78,812,644.80 × 31,004,445.44
  4. Step 4: Simplify right side
    57,109,948.48x = 2,443,542,345,683,699.50
  5. Step 5: Solve for x
    x = 2,443,542,345,683,699.50/57,109,948.48
  6. Step 6: Final answer
    x = 42,786,631.94

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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.