Home / 398,574,220.70-597,955,809.45-204,515,587.10

Finding the Fourth Proportional to 398,574,220.70, 597,955,809.45 and 204,515,587.10

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Solution

The fourth proportional to 398,574,220.70, 597,955,809.45 and 204,515,587.10 is: 306,821,859.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,574,220.70 : 597,955,809.45 = 204,515,587.10 : x
  2. Step 2: Convert to fraction form
    398,574,220.70/597,955,809.45 = 204,515,587.10/x
  3. Step 3: Cross multiply
    398,574,220.70x = 597,955,809.45 × 204,515,587.10
  4. Step 4: Simplify right side
    398,574,220.70x = 122,291,283,429,522,480
  5. Step 5: Solve for x
    x = 122,291,283,429,522,480/398,574,220.70
  6. Step 6: Final answer
    x = 306,821,859.21

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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.