Home / 1,132,657,682.78-1,563,146,161.36-686,639,844.82

Finding the Fourth Proportional to 1,132,657,682.78, 1,563,146,161.36 and 686,639,844.82

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Solution

The fourth proportional to 1,132,657,682.78, 1,563,146,161.36 and 686,639,844.82 is: 947,610,609.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132,657,682.78 : 1,563,146,161.36 = 686,639,844.82 : x
  2. Step 2: Convert to fraction form
    1,132,657,682.78/1,563,146,161.36 = 686,639,844.82/x
  3. Step 3: Cross multiply
    1,132,657,682.78x = 1,563,146,161.36 × 686,639,844.82
  4. Step 4: Simplify right side
    1,132,657,682.78x = 1,073,318,437,667,446,400
  5. Step 5: Solve for x
    x = 1,073,318,437,667,446,400/1,132,657,682.78
  6. Step 6: Final answer
    x = 947,610,609.97

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Double scale
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1.5x scale

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.