Home / 230,531,986.28-318,133,189.89-124,685,519.78

Finding the Fourth Proportional to 230,531,986.28, 318,133,189.89 and 124,685,519.78

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Solution

The fourth proportional to 230,531,986.28, 318,133,189.89 and 124,685,519.78 is: 172,065,502.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,531,986.28 : 318,133,189.89 = 124,685,519.78 : x
  2. Step 2: Convert to fraction form
    230,531,986.28/318,133,189.89 = 124,685,519.78/x
  3. Step 3: Cross multiply
    230,531,986.28x = 318,133,189.89 × 124,685,519.78
  4. Step 4: Simplify right side
    230,531,986.28x = 39,666,602,139,113,424
  5. Step 5: Solve for x
    x = 39,666,602,139,113,424/230,531,986.28
  6. Step 6: Final answer
    x = 172,065,502.84

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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.