Home / 111,989,478.28-154,554,679.91-61,763,519.79

Finding the Fourth Proportional to 111,989,478.28, 154,554,679.91 and 61,763,519.79

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Solution

The fourth proportional to 111,989,478.28, 154,554,679.91 and 61,763,519.79 is: 85,238,731.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,989,478.28 : 154,554,679.91 = 61,763,519.79 : x
  2. Step 2: Convert to fraction form
    111,989,478.28/154,554,679.91 = 61,763,519.79/x
  3. Step 3: Cross multiply
    111,989,478.28x = 154,554,679.91 × 61,763,519.79
  4. Step 4: Simplify right side
    111,989,478.28x = 9,545,841,031,258,400
  5. Step 5: Solve for x
    x = 9,545,841,031,258,400/111,989,478.28
  6. Step 6: Final answer
    x = 85,238,731.15

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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.