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Finding the Fourth Proportional to 675,428,672.67, 932,101,086.10 and 389,161,987.37

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Solution

The fourth proportional to 675,428,672.67, 932,101,086.10 and 389,161,987.37 is: 537,049,026.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,428,672.67 : 932,101,086.10 = 389,161,987.37 : x
  2. Step 2: Convert to fraction form
    675,428,672.67/932,101,086.10 = 389,161,987.37/x
  3. Step 3: Cross multiply
    675,428,672.67x = 932,101,086.10 × 389,161,987.37
  4. Step 4: Simplify right side
    675,428,672.67x = 362,738,311,100,251,264
  5. Step 5: Solve for x
    x = 362,738,311,100,251,264/675,428,672.67
  6. Step 6: Final answer
    x = 537,049,026.46

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1.5x scale

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.