Home / 191,306,370.88-286,957,665.24-87,646,172.72

Finding the Fourth Proportional to 191,306,370.88, 286,957,665.24 and 87,646,172.72

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Solution

The fourth proportional to 191,306,370.88, 286,957,665.24 and 87,646,172.72 is: 131,468,392.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,306,370.88 : 286,957,665.24 = 87,646,172.72 : x
  2. Step 2: Convert to fraction form
    191,306,370.88/286,957,665.24 = 87,646,172.72/x
  3. Step 3: Cross multiply
    191,306,370.88x = 286,957,665.24 × 87,646,172.72
  4. Step 4: Simplify right side
    191,306,370.88x = 25,150,741,090,952,980
  5. Step 5: Solve for x
    x = 25,150,741,090,952,980/191,306,370.88
  6. Step 6: Final answer
    x = 131,468,392.69

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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.