Home / 1,115,784,150.72-1,541,905,737.36-836,841,398.64

Finding the Fourth Proportional to 1,115,784,150.72, 1,541,905,737.36 and 836,841,398.64

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Solution

The fourth proportional to 1,115,784,150.72, 1,541,905,737.36 and 836,841,398.64 is: 1,156,433,843.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,784,150.72 : 1,541,905,737.36 = 836,841,398.64 : x
  2. Step 2: Convert to fraction form
    1,115,784,150.72/1,541,905,737.36 = 836,841,398.64/x
  3. Step 3: Cross multiply
    1,115,784,150.72x = 1,541,905,737.36 × 836,841,398.64
  4. Step 4: Simplify right side
    1,115,784,150.72x = 1,290,330,553,823,382,784
  5. Step 5: Solve for x
    x = 1,290,330,553,823,382,784/1,115,784,150.72
  6. Step 6: Final answer
    x = 1,156,433,843.40

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Double scale
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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.