Home / 289,539,990,452.16-399,568,864,042.80-159,343,835,286.24

Finding the Fourth Proportional to 289,539,990,452.16, 399,568,864,042.80 and 159,343,835,286.24

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Solution

The fourth proportional to 289,539,990,452.16, 399,568,864,042.80 and 159,343,835,286.24 is: 219,896,516,395.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,539,990,452.16 : 399,568,864,042.80 = 159,343,835,286.24 : x
  2. Step 2: Convert to fraction form
    289,539,990,452.16/399,568,864,042.80 = 159,343,835,286.24/x
  3. Step 3: Cross multiply
    289,539,990,452.16x = 399,568,864,042.80 × 159,343,835,286.24
  4. Step 4: Simplify right side
    289,539,990,452.16x = 63,668,835,257,545,939,484,672
  5. Step 5: Solve for x
    x = 63,668,835,257,545,939,484,672/289,539,990,452.16
  6. Step 6: Final answer
    x = 219,896,516,395.26

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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.