Home / 216,646,291.12-298,971,881.76-123,828,791.88

Finding the Fourth Proportional to 216,646,291.12, 298,971,881.76 and 123,828,791.88

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Solution

The fourth proportional to 216,646,291.12, 298,971,881.76 and 123,828,791.88 is: 170,883,732.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,646,291.12 : 298,971,881.76 = 123,828,791.88 : x
  2. Step 2: Convert to fraction form
    216,646,291.12/298,971,881.76 = 123,828,791.88/x
  3. Step 3: Cross multiply
    216,646,291.12x = 298,971,881.76 × 123,828,791.88
  4. Step 4: Simplify right side
    216,646,291.12x = 37,021,326,924,431,008
  5. Step 5: Solve for x
    x = 37,021,326,924,431,008/216,646,291.12
  6. Step 6: Final answer
    x = 170,883,732.80

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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.