Home / 28,290,301.60-42,399,769.20-12,097,109.92

Finding the Fourth Proportional to 28,290,301.60, 42,399,769.20 and 12,097,109.92

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Solution

The fourth proportional to 28,290,301.60, 42,399,769.20 and 12,097,109.92 is: 18,130,406.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,290,301.60 : 42,399,769.20 = 12,097,109.92 : x
  2. Step 2: Convert to fraction form
    28,290,301.60/42,399,769.20 = 12,097,109.92/x
  3. Step 3: Cross multiply
    28,290,301.60x = 42,399,769.20 × 12,097,109.92
  4. Step 4: Simplify right side
    28,290,301.60x = 512,914,668,595,030.50
  5. Step 5: Solve for x
    x = 512,914,668,595,030.50/28,290,301.60
  6. Step 6: Final answer
    x = 18,130,406.52

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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.