Home / 387,077,029.60-580,665,310.80-193,087,602.40

Finding the Fourth Proportional to 387,077,029.60, 580,665,310.80 and 193,087,602.40

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Solution

The fourth proportional to 387,077,029.60, 580,665,310.80 and 193,087,602.40 is: 289,656,228.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,077,029.60 : 580,665,310.80 = 193,087,602.40 : x
  2. Step 2: Convert to fraction form
    387,077,029.60/580,665,310.80 = 193,087,602.40/x
  3. Step 3: Cross multiply
    387,077,029.60x = 580,665,310.80 × 193,087,602.40
  4. Step 4: Simplify right side
    387,077,029.60x = 112,119,272,659,222,816
  5. Step 5: Solve for x
    x = 112,119,272,659,222,816/387,077,029.60
  6. Step 6: Final answer
    x = 289,656,228.83

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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.