Home / 28,100,992.32-38,776,402.08-15,875,488.32

Finding the Fourth Proportional to 28,100,992.32, 38,776,402.08 and 15,875,488.32

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Solution

The fourth proportional to 28,100,992.32, 38,776,402.08 and 15,875,488.32 is: 21,906,497.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,100,992.32 : 38,776,402.08 = 15,875,488.32 : x
  2. Step 2: Convert to fraction form
    28,100,992.32/38,776,402.08 = 15,875,488.32/x
  3. Step 3: Cross multiply
    28,100,992.32x = 38,776,402.08 × 15,875,488.32
  4. Step 4: Simplify right side
    28,100,992.32x = 615,594,318,312,663.75
  5. Step 5: Solve for x
    x = 615,594,318,312,663.75/28,100,992.32
  6. Step 6: Final answer
    x = 21,906,497.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.