Home / 112,818,313.91-155,721,558.24-66,435,472.04

Finding the Fourth Proportional to 112,818,313.91, 155,721,558.24 and 66,435,472.04

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Solution

The fourth proportional to 112,818,313.91, 155,721,558.24 and 66,435,472.04 is: 91,699,963.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,818,313.91 : 155,721,558.24 = 66,435,472.04 : x
  2. Step 2: Convert to fraction form
    112,818,313.91/155,721,558.24 = 66,435,472.04/x
  3. Step 3: Cross multiply
    112,818,313.91x = 155,721,558.24 × 66,435,472.04
  4. Step 4: Simplify right side
    112,818,313.91x = 10,345,435,227,700,144
  5. Step 5: Solve for x
    x = 10,345,435,227,700,144/112,818,313.91
  6. Step 6: Final answer
    x = 91,699,963.14

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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.