Home / 326,243,901.42-489,367,171.62-132,158,987.64

Finding the Fourth Proportional to 326,243,901.42, 489,367,171.62 and 132,158,987.64

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Solution

The fourth proportional to 326,243,901.42, 489,367,171.62 and 132,158,987.64 is: 198,239,015.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,243,901.42 : 489,367,171.62 = 132,158,987.64 : x
  2. Step 2: Convert to fraction form
    326,243,901.42/489,367,171.62 = 132,158,987.64/x
  3. Step 3: Cross multiply
    326,243,901.42x = 489,367,171.62 × 132,158,987.64
  4. Step 4: Simplify right side
    326,243,901.42x = 64,674,269,985,549,336
  5. Step 5: Solve for x
    x = 64,674,269,985,549,336/326,243,901.42
  6. Step 6: Final answer
    x = 198,239,015.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.