Home / 562,815,454.80-776,685,401.27-311,936,043.87

Finding the Fourth Proportional to 562,815,454.80, 776,685,401.27 and 311,936,043.87

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Solution

The fourth proportional to 562,815,454.80, 776,685,401.27 and 311,936,043.87 is: 430,471,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,815,454.80 : 776,685,401.27 = 311,936,043.87 : x
  2. Step 2: Convert to fraction form
    562,815,454.80/776,685,401.27 = 311,936,043.87/x
  3. Step 3: Cross multiply
    562,815,454.80x = 776,685,401.27 × 311,936,043.87
  4. Step 4: Simplify right side
    562,815,454.80x = 242,276,171,403,357,344
  5. Step 5: Solve for x
    x = 242,276,171,403,357,344/562,815,454.80
  6. Step 6: Final answer
    x = 430,471,781.35

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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.