Home / 358,067,708.16-493,952,563.20-209,291,630.40

Finding the Fourth Proportional to 358,067,708.16, 493,952,563.20 and 209,291,630.40

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Solution

The fourth proportional to 358,067,708.16, 493,952,563.20 and 209,291,630.40 is: 288,716,728.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,067,708.16 : 493,952,563.20 = 209,291,630.40 : x
  2. Step 2: Convert to fraction form
    358,067,708.16/493,952,563.20 = 209,291,630.40/x
  3. Step 3: Cross multiply
    358,067,708.16x = 493,952,563.20 × 209,291,630.40
  4. Step 4: Simplify right side
    358,067,708.16x = 103,380,137,292,387,040
  5. Step 5: Solve for x
    x = 103,380,137,292,387,040/358,067,708.16
  6. Step 6: Final answer
    x = 288,716,728.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.