Home / 499,318,619.20-748,977,928.80-438,852,443.20

Finding the Fourth Proportional to 499,318,619.20, 748,977,928.80 and 438,852,443.20

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Solution

The fourth proportional to 499,318,619.20, 748,977,928.80 and 438,852,443.20 is: 658,278,664.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,318,619.20 : 748,977,928.80 = 438,852,443.20 : x
  2. Step 2: Convert to fraction form
    499,318,619.20/748,977,928.80 = 438,852,443.20/x
  3. Step 3: Cross multiply
    499,318,619.20x = 748,977,928.80 × 438,852,443.20
  4. Step 4: Simplify right side
    499,318,619.20x = 328,690,793,956,755,584
  5. Step 5: Solve for x
    x = 328,690,793,956,755,584/499,318,619.20
  6. Step 6: Final answer
    x = 658,278,664.80

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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.