Home / 78,989,561.93-109,005,989.82-44,182,252.28

Finding the Fourth Proportional to 78,989,561.93, 109,005,989.82 and 44,182,252.28

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Solution

The fourth proportional to 78,989,561.93, 109,005,989.82 and 44,182,252.28 is: 60,971,728.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,989,561.93 : 109,005,989.82 = 44,182,252.28 : x
  2. Step 2: Convert to fraction form
    78,989,561.93/109,005,989.82 = 44,182,252.28/x
  3. Step 3: Cross multiply
    78,989,561.93x = 109,005,989.82 × 44,182,252.28
  4. Step 4: Simplify right side
    78,989,561.93x = 4,816,130,142,258,352
  5. Step 5: Solve for x
    x = 4,816,130,142,258,352/78,989,561.93
  6. Step 6: Final answer
    x = 60,971,728.73

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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.