Home / 801,845,200.80-1,202,767,801.20-393,698,512.80

Finding the Fourth Proportional to 801,845,200.80, 1,202,767,801.20 and 393,698,512.80

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Solution

The fourth proportional to 801,845,200.80, 1,202,767,801.20 and 393,698,512.80 is: 590,547,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,845,200.80 : 1,202,767,801.20 = 393,698,512.80 : x
  2. Step 2: Convert to fraction form
    801,845,200.80/1,202,767,801.20 = 393,698,512.80/x
  3. Step 3: Cross multiply
    801,845,200.80x = 1,202,767,801.20 × 393,698,512.80
  4. Step 4: Simplify right side
    801,845,200.80x = 473,527,894,576,166,080
  5. Step 5: Solve for x
    x = 473,527,894,576,166,080/801,845,200.80
  6. Step 6: Final answer
    x = 590,547,769.20

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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.