Home / 520,243,015,683.70-717,877,134,821.70-288,766,291,252.33

Finding the Fourth Proportional to 520,243,015,683.70, 717,877,134,821.70 and 288,766,291,252.33

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Solution

The fourth proportional to 520,243,015,683.70, 717,877,134,821.70 and 288,766,291,252.33 is: 398,465,162,525.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,243,015,683.70 : 717,877,134,821.70 = 288,766,291,252.33 : x
  2. Step 2: Convert to fraction form
    520,243,015,683.70/717,877,134,821.70 = 288,766,291,252.33/x
  3. Step 3: Cross multiply
    520,243,015,683.70x = 717,877,134,821.70 × 288,766,291,252.33
  4. Step 4: Simplify right side
    520,243,015,683.70x = 207,298,717,797,311,190,138,880
  5. Step 5: Solve for x
    x = 207,298,717,797,311,190,138,880/520,243,015,683.70
  6. Step 6: Final answer
    x = 398,465,162,525.79

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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.