Home / 289,092,733,957.53-398,957,540,468.47-158,886,203,781.11

Finding the Fourth Proportional to 289,092,733,957.53, 398,957,540,468.47 and 158,886,203,781.11

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Solution

The fourth proportional to 289,092,733,957.53, 398,957,540,468.47 and 158,886,203,781.11 is: 219,268,219,602.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,092,733,957.53 : 398,957,540,468.47 = 158,886,203,781.11 : x
  2. Step 2: Convert to fraction form
    289,092,733,957.53/398,957,540,468.47 = 158,886,203,781.11/x
  3. Step 3: Cross multiply
    289,092,733,957.53x = 398,957,540,468.47 × 158,886,203,781.11
  4. Step 4: Simplify right side
    289,092,733,957.53x = 63,388,849,074,883,757,342,720
  5. Step 5: Solve for x
    x = 63,388,849,074,883,757,342,720/289,092,733,957.53
  6. Step 6: Final answer
    x = 219,268,219,602.49

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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.