Home / 7,127,999.20-10,691,998.80-4,606,501.60

Finding the Fourth Proportional to 7,127,999.20, 10,691,998.80 and 4,606,501.60

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Solution

The fourth proportional to 7,127,999.20, 10,691,998.80 and 4,606,501.60 is: 6,909,752.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127,999.20 : 10,691,998.80 = 4,606,501.60 : x
  2. Step 2: Convert to fraction form
    7,127,999.20/10,691,998.80 = 4,606,501.60/x
  3. Step 3: Cross multiply
    7,127,999.20x = 10,691,998.80 × 4,606,501.60
  4. Step 4: Simplify right side
    7,127,999.20x = 49,252,709,579,398.08
  5. Step 5: Solve for x
    x = 49,252,709,579,398.08/7,127,999.20
  6. Step 6: Final answer
    x = 6,909,752.40

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Similar ratio
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1.5x scale

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.