Home / 243,745,918.40-336,369,330.88-139,326,231.76

Finding the Fourth Proportional to 243,745,918.40, 336,369,330.88 and 139,326,231.76

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Solution

The fourth proportional to 243,745,918.40, 336,369,330.88 and 139,326,231.76 is: 192,270,178.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,745,918.40 : 336,369,330.88 = 139,326,231.76 : x
  2. Step 2: Convert to fraction form
    243,745,918.40/336,369,330.88 = 139,326,231.76/x
  3. Step 3: Cross multiply
    243,745,918.40x = 336,369,330.88 × 139,326,231.76
  4. Step 4: Simplify right side
    243,745,918.40x = 46,865,071,351,143,000
  5. Step 5: Solve for x
    x = 46,865,071,351,143,000/243,745,918.40
  6. Step 6: Final answer
    x = 192,270,178.96

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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.