Home / 819,074,390.40-1,228,611,585.60-301,397,712.30

Finding the Fourth Proportional to 819,074,390.40, 1,228,611,585.60 and 301,397,712.30

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Solution

The fourth proportional to 819,074,390.40, 1,228,611,585.60 and 301,397,712.30 is: 452,096,568.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,074,390.40 : 1,228,611,585.60 = 301,397,712.30 : x
  2. Step 2: Convert to fraction form
    819,074,390.40/1,228,611,585.60 = 301,397,712.30/x
  3. Step 3: Cross multiply
    819,074,390.40x = 1,228,611,585.60 × 301,397,712.30
  4. Step 4: Simplify right side
    819,074,390.40x = 370,300,721,205,115,584
  5. Step 5: Solve for x
    x = 370,300,721,205,115,584/819,074,390.40
  6. Step 6: Final answer
    x = 452,096,568.45

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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.