Home / 30,347,405.60-45,521,108.40-28,331,866.40

Finding the Fourth Proportional to 30,347,405.60, 45,521,108.40 and 28,331,866.40

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Solution

The fourth proportional to 30,347,405.60, 45,521,108.40 and 28,331,866.40 is: 42,497,799.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,347,405.60 : 45,521,108.40 = 28,331,866.40 : x
  2. Step 2: Convert to fraction form
    30,347,405.60/45,521,108.40 = 28,331,866.40/x
  3. Step 3: Cross multiply
    30,347,405.60x = 45,521,108.40 × 28,331,866.40
  4. Step 4: Simplify right side
    30,347,405.60x = 1,289,697,961,568,717.75
  5. Step 5: Solve for x
    x = 1,289,697,961,568,717.75/30,347,405.60
  6. Step 6: Final answer
    x = 42,497,799.60

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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.