Home / 31,143,646.67-42,979,461.89-17,912,802.54

Finding the Fourth Proportional to 31,143,646.67, 42,979,461.89 and 17,912,802.54

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Solution

The fourth proportional to 31,143,646.67, 42,979,461.89 and 17,912,802.54 is: 24,720,374.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,143,646.67 : 42,979,461.89 = 17,912,802.54 : x
  2. Step 2: Convert to fraction form
    31,143,646.67/42,979,461.89 = 17,912,802.54/x
  3. Step 3: Cross multiply
    31,143,646.67x = 42,979,461.89 × 17,912,802.54
  4. Step 4: Simplify right side
    31,143,646.67x = 769,882,613,920,733
  5. Step 5: Solve for x
    x = 769,882,613,920,733/31,143,646.67
  6. Step 6: Final answer
    x = 24,720,374.66

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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.