Home / 111,282,989.97-153,588,915.60-61,739,325.60

Finding the Fourth Proportional to 111,282,989.97, 153,588,915.60 and 61,739,325.60

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Solution

The fourth proportional to 111,282,989.97, 153,588,915.60 and 61,739,325.60 is: 85,210,471.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,282,989.97 : 153,588,915.60 = 61,739,325.60 : x
  2. Step 2: Convert to fraction form
    111,282,989.97/153,588,915.60 = 61,739,325.60/x
  3. Step 3: Cross multiply
    111,282,989.97x = 153,588,915.60 × 61,739,325.60
  4. Step 4: Simplify right side
    111,282,989.97x = 9,482,476,068,319,432
  5. Step 5: Solve for x
    x = 9,482,476,068,319,432/111,282,989.97
  6. Step 6: Final answer
    x = 85,210,471.70

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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.