Home / 280,422,254.40-420,633,381.60-232,646,510.40

Finding the Fourth Proportional to 280,422,254.40, 420,633,381.60 and 232,646,510.40

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Solution

The fourth proportional to 280,422,254.40, 420,633,381.60 and 232,646,510.40 is: 348,969,765.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,422,254.40 : 420,633,381.60 = 232,646,510.40 : x
  2. Step 2: Convert to fraction form
    280,422,254.40/420,633,381.60 = 232,646,510.40/x
  3. Step 3: Cross multiply
    280,422,254.40x = 420,633,381.60 × 232,646,510.40
  4. Step 4: Simplify right side
    280,422,254.40x = 97,858,888,386,991,584
  5. Step 5: Solve for x
    x = 97,858,888,386,991,584/280,422,254.40
  6. Step 6: Final answer
    x = 348,969,765.60

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Similar ratio
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1.5x scale

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.