Home / 256,276,355.20-384,456,419.52-83,703,068.80

Finding the Fourth Proportional to 256,276,355.20, 384,456,419.52 and 83,703,068.80

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Solution

The fourth proportional to 256,276,355.20, 384,456,419.52 and 83,703,068.80 is: 125,568,283.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,276,355.20 : 384,456,419.52 = 83,703,068.80 : x
  2. Step 2: Convert to fraction form
    256,276,355.20/384,456,419.52 = 83,703,068.80/x
  3. Step 3: Cross multiply
    256,276,355.20x = 384,456,419.52 × 83,703,068.80
  4. Step 4: Simplify right side
    256,276,355.20x = 32,180,182,133,684,220
  5. Step 5: Solve for x
    x = 32,180,182,133,684,220/256,276,355.20
  6. Step 6: Final answer
    x = 125,568,283.93

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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.