Home / 217,835,999.60-326,753,999.40-115,547,385.20

Finding the Fourth Proportional to 217,835,999.60, 326,753,999.40 and 115,547,385.20

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Solution

The fourth proportional to 217,835,999.60, 326,753,999.40 and 115,547,385.20 is: 173,321,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,835,999.60 : 326,753,999.40 = 115,547,385.20 : x
  2. Step 2: Convert to fraction form
    217,835,999.60/326,753,999.40 = 115,547,385.20/x
  3. Step 3: Cross multiply
    217,835,999.60x = 326,753,999.40 × 115,547,385.20
  4. Step 4: Simplify right side
    217,835,999.60x = 37,755,570,234,312,368
  5. Step 5: Solve for x
    x = 37,755,570,234,312,368/217,835,999.60
  6. Step 6: Final answer
    x = 173,321,077.80

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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.