Home / 401,619,988.44-554,235,582.78-225,407,983.86

Finding the Fourth Proportional to 401,619,988.44, 554,235,582.78 and 225,407,983.86

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Solution

The fourth proportional to 401,619,988.44, 554,235,582.78 and 225,407,983.86 is: 311,063,017.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,619,988.44 : 554,235,582.78 = 225,407,983.86 : x
  2. Step 2: Convert to fraction form
    401,619,988.44/554,235,582.78 = 225,407,983.86/x
  3. Step 3: Cross multiply
    401,619,988.44x = 554,235,582.78 × 225,407,983.86
  4. Step 4: Simplify right side
    401,619,988.44x = 124,929,125,297,911,936
  5. Step 5: Solve for x
    x = 124,929,125,297,911,936/401,619,988.44
  6. Step 6: Final answer
    x = 311,063,017.02

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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.