Home / 419,421,948.16-579,050,571.92-372,883,659.76

Finding the Fourth Proportional to 419,421,948.16, 579,050,571.92 and 372,883,659.76

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Solution

The fourth proportional to 419,421,948.16, 579,050,571.92 and 372,883,659.76 is: 514,800,184.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,421,948.16 : 579,050,571.92 = 372,883,659.76 : x
  2. Step 2: Convert to fraction form
    419,421,948.16/579,050,571.92 = 372,883,659.76/x
  3. Step 3: Cross multiply
    419,421,948.16x = 579,050,571.92 × 372,883,659.76
  4. Step 4: Simplify right side
    419,421,948.16x = 215,918,496,443,650,656
  5. Step 5: Solve for x
    x = 215,918,496,443,650,656/419,421,948.16
  6. Step 6: Final answer
    x = 514,800,184.85

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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.