Home / 111,038,920-153,238,498.80-61,479,294.88

Finding the Fourth Proportional to 111,038,920, 153,238,498.80 and 61,479,294.88

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Solution

The fourth proportional to 111,038,920, 153,238,498.80 and 61,479,294.88 is: 84,844,078.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,038,920 : 153,238,498.80 = 61,479,294.88 : x
  2. Step 2: Convert to fraction form
    111,038,920/153,238,498.80 = 61,479,294.88/x
  3. Step 3: Cross multiply
    111,038,920x = 153,238,498.80 × 61,479,294.88
  4. Step 4: Simplify right side
    111,038,920x = 9,420,994,854,693,728
  5. Step 5: Solve for x
    x = 9,420,994,854,693,728/111,038,920
  6. Step 6: Final answer
    x = 84,844,078.59

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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.