Home / 865,366,905.80-1,298,050,358.70-251,971,142.60

Finding the Fourth Proportional to 865,366,905.80, 1,298,050,358.70 and 251,971,142.60

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Solution

The fourth proportional to 865,366,905.80, 1,298,050,358.70 and 251,971,142.60 is: 377,956,713.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,366,905.80 : 1,298,050,358.70 = 251,971,142.60 : x
  2. Step 2: Convert to fraction form
    865,366,905.80/1,298,050,358.70 = 251,971,142.60/x
  3. Step 3: Cross multiply
    865,366,905.80x = 1,298,050,358.70 × 251,971,142.60
  4. Step 4: Simplify right side
    865,366,905.80x = 327,071,232,033,978,880
  5. Step 5: Solve for x
    x = 327,071,232,033,978,880/865,366,905.80
  6. Step 6: Final answer
    x = 377,956,713.90

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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.