Home / 215,547,200.80-323,320,801.20-129,550,861.60

Finding the Fourth Proportional to 215,547,200.80, 323,320,801.20 and 129,550,861.60

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Solution

The fourth proportional to 215,547,200.80, 323,320,801.20 and 129,550,861.60 is: 194,326,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,547,200.80 : 323,320,801.20 = 129,550,861.60 : x
  2. Step 2: Convert to fraction form
    215,547,200.80/323,320,801.20 = 129,550,861.60/x
  3. Step 3: Cross multiply
    215,547,200.80x = 323,320,801.20 × 129,550,861.60
  4. Step 4: Simplify right side
    215,547,200.80x = 41,886,488,368,662,312
  5. Step 5: Solve for x
    x = 41,886,488,368,662,312/215,547,200.80
  6. Step 6: Final answer
    x = 194,326,292.40

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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.