Home / 513,187,040.07-708,203,378.10-278,238,154.95

Finding the Fourth Proportional to 513,187,040.07, 708,203,378.10 and 278,238,154.95

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Solution

The fourth proportional to 513,187,040.07, 708,203,378.10 and 278,238,154.95 is: 383,971,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,187,040.07 : 708,203,378.10 = 278,238,154.95 : x
  2. Step 2: Convert to fraction form
    513,187,040.07/708,203,378.10 = 278,238,154.95/x
  3. Step 3: Cross multiply
    513,187,040.07x = 708,203,378.10 × 278,238,154.95
  4. Step 4: Simplify right side
    513,187,040.07x = 197,049,201,251,901,248
  5. Step 5: Solve for x
    x = 197,049,201,251,901,248/513,187,040.07
  6. Step 6: Final answer
    x = 383,971,507.20

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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.