Home / 1,165,960,884.40-1,749,031,744.20-389,609,321.20

Finding the Fourth Proportional to 1,165,960,884.40, 1,749,031,744.20 and 389,609,321.20

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Solution

The fourth proportional to 1,165,960,884.40, 1,749,031,744.20 and 389,609,321.20 is: 584,444,195.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,960,884.40 : 1,749,031,744.20 = 389,609,321.20 : x
  2. Step 2: Convert to fraction form
    1,165,960,884.40/1,749,031,744.20 = 389,609,321.20/x
  3. Step 3: Cross multiply
    1,165,960,884.40x = 1,749,031,744.20 × 389,609,321.20
  4. Step 4: Simplify right side
    1,165,960,884.40x = 681,439,070,615,014,016
  5. Step 5: Solve for x
    x = 681,439,070,615,014,016/1,165,960,884.40
  6. Step 6: Final answer
    x = 584,444,195.11

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1.5x scale

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.