Home / 111,154,720.47-153,394,414.89-61,595,921.98

Finding the Fourth Proportional to 111,154,720.47, 153,394,414.89 and 61,595,921.98

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Solution

The fourth proportional to 111,154,720.47, 153,394,414.89 and 61,595,921.98 is: 85,002,871.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,154,720.47 : 153,394,414.89 = 61,595,921.98 : x
  2. Step 2: Convert to fraction form
    111,154,720.47/153,394,414.89 = 61,595,921.98/x
  3. Step 3: Cross multiply
    111,154,720.47x = 153,394,414.89 × 61,595,921.98
  4. Step 4: Simplify right side
    111,154,720.47x = 9,448,470,411,732,188
  5. Step 5: Solve for x
    x = 9,448,470,411,732,188/111,154,720.47
  6. Step 6: Final answer
    x = 85,002,871.42

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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.