Home / 256,641,767.40-384,679,215.90-141,708,793.80

Finding the Fourth Proportional to 256,641,767.40, 384,679,215.90 and 141,708,793.80

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Solution

The fourth proportional to 256,641,767.40, 384,679,215.90 and 141,708,793.80 is: 212,406,687.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,641,767.40 : 384,679,215.90 = 141,708,793.80 : x
  2. Step 2: Convert to fraction form
    256,641,767.40/384,679,215.90 = 141,708,793.80/x
  3. Step 3: Cross multiply
    256,641,767.40x = 384,679,215.90 × 141,708,793.80
  4. Step 4: Simplify right side
    256,641,767.40x = 54,512,427,685,118,784
  5. Step 5: Solve for x
    x = 54,512,427,685,118,784/256,641,767.40
  6. Step 6: Final answer
    x = 212,406,687.49

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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.