Home / 256,265,792-384,538,626.08-108,690,396.80

Finding the Fourth Proportional to 256,265,792, 384,538,626.08 and 108,690,396.80

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Solution

The fourth proportional to 256,265,792, 384,538,626.08 and 108,690,396.80 is: 163,094,947.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,265,792 : 384,538,626.08 = 108,690,396.80 : x
  2. Step 2: Convert to fraction form
    256,265,792/384,538,626.08 = 108,690,396.80/x
  3. Step 3: Cross multiply
    256,265,792x = 384,538,626.08 × 108,690,396.80
  4. Step 4: Simplify right side
    256,265,792x = 41,795,655,853,562,024
  5. Step 5: Solve for x
    x = 41,795,655,853,562,024/256,265,792
  6. Step 6: Final answer
    x = 163,094,947.35

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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.