Home / 475,382,694.52-655,871,301.66-287,140,651.48

Finding the Fourth Proportional to 475,382,694.52, 655,871,301.66 and 287,140,651.48

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Solution

The fourth proportional to 475,382,694.52, 655,871,301.66 and 287,140,651.48 is: 396,159,378.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,382,694.52 : 655,871,301.66 = 287,140,651.48 : x
  2. Step 2: Convert to fraction form
    475,382,694.52/655,871,301.66 = 287,140,651.48/x
  3. Step 3: Cross multiply
    475,382,694.52x = 655,871,301.66 × 287,140,651.48
  4. Step 4: Simplify right side
    475,382,694.52x = 188,327,312,845,688,000
  5. Step 5: Solve for x
    x = 188,327,312,845,688,000/475,382,694.52
  6. Step 6: Final answer
    x = 396,159,378.57

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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.