Home / 425,908,829.60-638,863,244.40-219,284,568.80

Finding the Fourth Proportional to 425,908,829.60, 638,863,244.40 and 219,284,568.80

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Solution

The fourth proportional to 425,908,829.60, 638,863,244.40 and 219,284,568.80 is: 328,926,853.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,908,829.60 : 638,863,244.40 = 219,284,568.80 : x
  2. Step 2: Convert to fraction form
    425,908,829.60/638,863,244.40 = 219,284,568.80/x
  3. Step 3: Cross multiply
    425,908,829.60x = 638,863,244.40 × 219,284,568.80
  4. Step 4: Simplify right side
    425,908,829.60x = 140,092,851,070,423,024
  5. Step 5: Solve for x
    x = 140,092,851,070,423,024/425,908,829.60
  6. Step 6: Final answer
    x = 328,926,853.20

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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.