Home / 111,989,479.28-154,554,681.29-61,763,520.79

Finding the Fourth Proportional to 111,989,479.28, 154,554,681.29 and 61,763,520.79

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Solution

The fourth proportional to 111,989,479.28, 154,554,681.29 and 61,763,520.79 is: 85,238,732.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,989,479.28 : 154,554,681.29 = 61,763,520.79 : x
  2. Step 2: Convert to fraction form
    111,989,479.28/154,554,681.29 = 61,763,520.79/x
  3. Step 3: Cross multiply
    111,989,479.28x = 154,554,681.29 × 61,763,520.79
  4. Step 4: Simplify right side
    111,989,479.28x = 9,545,841,271,046,738
  5. Step 5: Solve for x
    x = 9,545,841,271,046,738/111,989,479.28
  6. Step 6: Final answer
    x = 85,238,732.53

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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.