Home / 243,727,070.40-336,343,357.15-139,307,383.73

Finding the Fourth Proportional to 243,727,070.40, 336,343,357.15 and 139,307,383.73

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Solution

The fourth proportional to 243,727,070.40, 336,343,357.15 and 139,307,383.73 is: 192,244,189.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,727,070.40 : 336,343,357.15 = 139,307,383.73 : x
  2. Step 2: Convert to fraction form
    243,727,070.40/336,343,357.15 = 139,307,383.73/x
  3. Step 3: Cross multiply
    243,727,070.40x = 336,343,357.15 × 139,307,383.73
  4. Step 4: Simplify right side
    243,727,070.40x = 46,855,113,120,024,072
  5. Step 5: Solve for x
    x = 46,855,113,120,024,072/243,727,070.40
  6. Step 6: Final answer
    x = 192,244,189.55

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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.