Home / 212,869,791.40-319,211,375.10-97,816,095.40

Finding the Fourth Proportional to 212,869,791.40, 319,211,375.10 and 97,816,095.40

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Solution

The fourth proportional to 212,869,791.40, 319,211,375.10 and 97,816,095.40 is: 146,681,265.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,869,791.40 : 319,211,375.10 = 97,816,095.40 : x
  2. Step 2: Convert to fraction form
    212,869,791.40/319,211,375.10 = 97,816,095.40/x
  3. Step 3: Cross multiply
    212,869,791.40x = 319,211,375.10 × 97,816,095.40
  4. Step 4: Simplify right side
    212,869,791.40x = 31,224,010,319,546,788
  5. Step 5: Solve for x
    x = 31,224,010,319,546,788/212,869,791.40
  6. Step 6: Final answer
    x = 146,681,265.17

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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.