Home / 355,897,831.47-491,190,570.14-199,275,031.86

Finding the Fourth Proportional to 355,897,831.47, 491,190,570.14 and 199,275,031.86

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Solution

The fourth proportional to 355,897,831.47, 491,190,570.14 and 199,275,031.86 is: 275,028,415.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,897,831.47 : 491,190,570.14 = 199,275,031.86 : x
  2. Step 2: Convert to fraction form
    355,897,831.47/491,190,570.14 = 199,275,031.86/x
  3. Step 3: Cross multiply
    355,897,831.47x = 491,190,570.14 × 199,275,031.86
  4. Step 4: Simplify right side
    355,897,831.47x = 97,882,016,513,980,064
  5. Step 5: Solve for x
    x = 97,882,016,513,980,064/355,897,831.47
  6. Step 6: Final answer
    x = 275,028,415.06

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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.