Home / 129,978,382.60-194,920,334.70-43,719,603.40

Finding the Fourth Proportional to 129,978,382.60, 194,920,334.70 and 43,719,603.40

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Solution

The fourth proportional to 129,978,382.60, 194,920,334.70 and 43,719,603.40 is: 65,563,515.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,978,382.60 : 194,920,334.70 = 43,719,603.40 : x
  2. Step 2: Convert to fraction form
    129,978,382.60/194,920,334.70 = 43,719,603.40/x
  3. Step 3: Cross multiply
    129,978,382.60x = 194,920,334.70 × 43,719,603.40
  4. Step 4: Simplify right side
    129,978,382.60x = 8,521,839,727,679,257
  5. Step 5: Solve for x
    x = 8,521,839,727,679,257/129,978,382.60
  6. Step 6: Final answer
    x = 65,563,515.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.