Home / 513,986,862.69-769,722,911.20-464,243,424.67

Finding the Fourth Proportional to 513,986,862.69, 769,722,911.20 and 464,243,424.67

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Solution

The fourth proportional to 513,986,862.69, 769,722,911.20 and 464,243,424.67 is: 695,229,443.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,986,862.69 : 769,722,911.20 = 464,243,424.67 : x
  2. Step 2: Convert to fraction form
    513,986,862.69/769,722,911.20 = 464,243,424.67/x
  3. Step 3: Cross multiply
    513,986,862.69x = 769,722,911.20 × 464,243,424.67
  4. Step 4: Simplify right side
    513,986,862.69x = 357,338,800,343,992,704
  5. Step 5: Solve for x
    x = 357,338,800,343,992,704/513,986,862.69
  6. Step 6: Final answer
    x = 695,229,443.17

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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.