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Finding the Fourth Proportional to 259,556,465.80, 389,334,698.70 and 250,486,539.40

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Solution

The fourth proportional to 259,556,465.80, 389,334,698.70 and 250,486,539.40 is: 375,729,809.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,556,465.80 : 389,334,698.70 = 250,486,539.40 : x
  2. Step 2: Convert to fraction form
    259,556,465.80/389,334,698.70 = 250,486,539.40/x
  3. Step 3: Cross multiply
    259,556,465.80x = 389,334,698.70 × 250,486,539.40
  4. Step 4: Simplify right side
    259,556,465.80x = 97,523,101,345,704,672
  5. Step 5: Solve for x
    x = 97,523,101,345,704,672/259,556,465.80
  6. Step 6: Final answer
    x = 375,729,809.10

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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.