Home / 286,909,182.90-430,418,334.53-198,649,954.80

Finding the Fourth Proportional to 286,909,182.90, 430,418,334.53 and 198,649,954.80

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Solution

The fourth proportional to 286,909,182.90, 430,418,334.53 and 198,649,954.80 is: 298,012,708.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,909,182.90 : 430,418,334.53 = 198,649,954.80 : x
  2. Step 2: Convert to fraction form
    286,909,182.90/430,418,334.53 = 198,649,954.80/x
  3. Step 3: Cross multiply
    286,909,182.90x = 430,418,334.53 × 198,649,954.80
  4. Step 4: Simplify right side
    286,909,182.90x = 85,502,582,699,972,416
  5. Step 5: Solve for x
    x = 85,502,582,699,972,416/286,909,182.90
  6. Step 6: Final answer
    x = 298,012,708.54

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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.