Home / 387,088,014.40-580,632,021.60-193,596,251.20

Finding the Fourth Proportional to 387,088,014.40, 580,632,021.60 and 193,596,251.20

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Solution

The fourth proportional to 387,088,014.40, 580,632,021.60 and 193,596,251.20 is: 290,394,376.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,088,014.40 : 580,632,021.60 = 193,596,251.20 : x
  2. Step 2: Convert to fraction form
    387,088,014.40/580,632,021.60 = 193,596,251.20/x
  3. Step 3: Cross multiply
    387,088,014.40x = 580,632,021.60 × 193,596,251.20
  4. Step 4: Simplify right side
    387,088,014.40x = 112,408,182,708,437,424
  5. Step 5: Solve for x
    x = 112,408,182,708,437,424/387,088,014.40
  6. Step 6: Final answer
    x = 290,394,376.80

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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.