Home / 438,053,465.40-657,080,198.10-265,724,863.80

Finding the Fourth Proportional to 438,053,465.40, 657,080,198.10 and 265,724,863.80

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Solution

The fourth proportional to 438,053,465.40, 657,080,198.10 and 265,724,863.80 is: 398,587,295.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,053,465.40 : 657,080,198.10 = 265,724,863.80 : x
  2. Step 2: Convert to fraction form
    438,053,465.40/657,080,198.10 = 265,724,863.80/x
  3. Step 3: Cross multiply
    438,053,465.40x = 657,080,198.10 × 265,724,863.80
  4. Step 4: Simplify right side
    438,053,465.40x = 174,602,546,145,799,520
  5. Step 5: Solve for x
    x = 174,602,546,145,799,520/438,053,465.40
  6. Step 6: Final answer
    x = 398,587,295.70

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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.