Home / 215,343,141.70-323,014,712.55-124,643,877.70

Finding the Fourth Proportional to 215,343,141.70, 323,014,712.55 and 124,643,877.70

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Solution

The fourth proportional to 215,343,141.70, 323,014,712.55 and 124,643,877.70 is: 186,965,816.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,343,141.70 : 323,014,712.55 = 124,643,877.70 : x
  2. Step 2: Convert to fraction form
    215,343,141.70/323,014,712.55 = 124,643,877.70/x
  3. Step 3: Cross multiply
    215,343,141.70x = 323,014,712.55 × 124,643,877.70
  4. Step 4: Simplify right side
    215,343,141.70x = 40,261,806,326,382,856
  5. Step 5: Solve for x
    x = 40,261,806,326,382,856/215,343,141.70
  6. Step 6: Final answer
    x = 186,965,816.55

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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.