Home / 21,029,979.60-31,474,985.40-15,256,299.60

Finding the Fourth Proportional to 21,029,979.60, 31,474,985.40 and 15,256,299.60

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Solution

The fourth proportional to 21,029,979.60, 31,474,985.40 and 15,256,299.60 is: 22,833,679.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,029,979.60 : 31,474,985.40 = 15,256,299.60 : x
  2. Step 2: Convert to fraction form
    21,029,979.60/31,474,985.40 = 15,256,299.60/x
  3. Step 3: Cross multiply
    21,029,979.60x = 31,474,985.40 × 15,256,299.60
  4. Step 4: Simplify right side
    21,029,979.60x = 480,191,807,168,025.81
  5. Step 5: Solve for x
    x = 480,191,807,168,025.81/21,029,979.60
  6. Step 6: Final answer
    x = 22,833,679.17

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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.