Home / 217,140,542.80-325,758,053.40-71,549,328.40

Finding the Fourth Proportional to 217,140,542.80, 325,758,053.40 and 71,549,328.40

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Solution

The fourth proportional to 217,140,542.80, 325,758,053.40 and 71,549,328.40 is: 107,339,558.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,140,542.80 : 325,758,053.40 = 71,549,328.40 : x
  2. Step 2: Convert to fraction form
    217,140,542.80/325,758,053.40 = 71,549,328.40/x
  3. Step 3: Cross multiply
    217,140,542.80x = 325,758,053.40 × 71,549,328.40
  4. Step 4: Simplify right side
    217,140,542.80x = 23,307,769,941,661,336
  5. Step 5: Solve for x
    x = 23,307,769,941,661,336/217,140,542.80
  6. Step 6: Final answer
    x = 107,339,558.25

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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.