Home / 401,914,852.80-602,872,279.20-398,513,630.40

Finding the Fourth Proportional to 401,914,852.80, 602,872,279.20 and 398,513,630.40

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Solution

The fourth proportional to 401,914,852.80, 602,872,279.20 and 398,513,630.40 is: 597,770,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,914,852.80 : 602,872,279.20 = 398,513,630.40 : x
  2. Step 2: Convert to fraction form
    401,914,852.80/602,872,279.20 = 398,513,630.40/x
  3. Step 3: Cross multiply
    401,914,852.80x = 602,872,279.20 × 398,513,630.40
  4. Step 4: Simplify right side
    401,914,852.80x = 240,252,820,651,514,400
  5. Step 5: Solve for x
    x = 240,252,820,651,514,400/401,914,852.80
  6. Step 6: Final answer
    x = 597,770,445.60

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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.