Home / 651,100,518.20-977,784,518.10-344,990,502.20

Finding the Fourth Proportional to 651,100,518.20, 977,784,518.10 and 344,990,502.20

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Solution

The fourth proportional to 651,100,518.20, 977,784,518.10 and 344,990,502.20 is: 518,086,474.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,100,518.20 : 977,784,518.10 = 344,990,502.20 : x
  2. Step 2: Convert to fraction form
    651,100,518.20/977,784,518.10 = 344,990,502.20/x
  3. Step 3: Cross multiply
    651,100,518.20x = 977,784,518.10 × 344,990,502.20
  4. Step 4: Simplify right side
    651,100,518.20x = 337,326,371,942,704,000
  5. Step 5: Solve for x
    x = 337,326,371,942,704,000/651,100,518.20
  6. Step 6: Final answer
    x = 518,086,474.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.