Home / 172,981,831.47-238,714,771.77-97,644,020.55

Finding the Fourth Proportional to 172,981,831.47, 238,714,771.77 and 97,644,020.55

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Solution

The fourth proportional to 172,981,831.47, 238,714,771.77 and 97,644,020.55 is: 134,748,660.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,981,831.47 : 238,714,771.77 = 97,644,020.55 : x
  2. Step 2: Convert to fraction form
    172,981,831.47/238,714,771.77 = 97,644,020.55/x
  3. Step 3: Cross multiply
    172,981,831.47x = 238,714,771.77 × 97,644,020.55
  4. Step 4: Simplify right side
    172,981,831.47x = 23,309,070,080,298,440
  5. Step 5: Solve for x
    x = 23,309,070,080,298,440/172,981,831.47
  6. Step 6: Final answer
    x = 134,748,660.49

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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.