Home / 286,909,193.90-430,418,351.04-198,649,965.80

Finding the Fourth Proportional to 286,909,193.90, 430,418,351.04 and 198,649,965.80

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Solution

The fourth proportional to 286,909,193.90, 430,418,351.04 and 198,649,965.80 is: 298,012,725.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,909,193.90 : 430,418,351.04 = 198,649,965.80 : x
  2. Step 2: Convert to fraction form
    286,909,193.90/430,418,351.04 = 198,649,965.80/x
  3. Step 3: Cross multiply
    286,909,193.90x = 430,418,351.04 × 198,649,965.80
  4. Step 4: Simplify right side
    286,909,193.90x = 85,502,590,713,788,400
  5. Step 5: Solve for x
    x = 85,502,590,713,788,400/286,909,193.90
  6. Step 6: Final answer
    x = 298,012,725.04

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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.