Home / 20,565,345.40-30,848,018.10-10,487,649.40

Finding the Fourth Proportional to 20,565,345.40, 30,848,018.10 and 10,487,649.40

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Solution

The fourth proportional to 20,565,345.40, 30,848,018.10 and 10,487,649.40 is: 15,731,474.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,565,345.40 : 30,848,018.10 = 10,487,649.40 : x
  2. Step 2: Convert to fraction form
    20,565,345.40/30,848,018.10 = 10,487,649.40/x
  3. Step 3: Cross multiply
    20,565,345.40x = 30,848,018.10 × 10,487,649.40
  4. Step 4: Simplify right side
    20,565,345.40x = 323,523,198,517,654.19
  5. Step 5: Solve for x
    x = 323,523,198,517,654.19/20,565,345.40
  6. Step 6: Final answer
    x = 15,731,474.10

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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.