Home / 40,338,085.79-60,490,421.80-12,662,755.79

Finding the Fourth Proportional to 40,338,085.79, 60,490,421.80 and 12,662,755.79

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Solution

The fourth proportional to 40,338,085.79, 60,490,421.80 and 12,662,755.79 is: 18,988,889.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,338,085.79 : 60,490,421.80 = 12,662,755.79 : x
  2. Step 2: Convert to fraction form
    40,338,085.79/60,490,421.80 = 12,662,755.79/x
  3. Step 3: Cross multiply
    40,338,085.79x = 60,490,421.80 × 12,662,755.79
  4. Step 4: Simplify right side
    40,338,085.79x = 765,975,438,553,383.25
  5. Step 5: Solve for x
    x = 765,975,438,553,383.25/40,338,085.79
  6. Step 6: Final answer
    x = 18,988,889.12

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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.