Home / 1,238,784,414.90-1,858,176,622.35-715,049,309.40

Finding the Fourth Proportional to 1,238,784,414.90, 1,858,176,622.35 and 715,049,309.40

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Solution

The fourth proportional to 1,238,784,414.90, 1,858,176,622.35 and 715,049,309.40 is: 1,072,573,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,784,414.90 : 1,858,176,622.35 = 715,049,309.40 : x
  2. Step 2: Convert to fraction form
    1,238,784,414.90/1,858,176,622.35 = 715,049,309.40/x
  3. Step 3: Cross multiply
    1,238,784,414.90x = 1,858,176,622.35 × 715,049,309.40
  4. Step 4: Simplify right side
    1,238,784,414.90x = 1,328,687,910,554,592,000
  5. Step 5: Solve for x
    x = 1,328,687,910,554,592,000/1,238,784,414.90
  6. Step 6: Final answer
    x = 1,072,573,964.10

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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.