Home / 7,072,970.40-9,760,566.96-3,933,426.60

Finding the Fourth Proportional to 7,072,970.40, 9,760,566.96 and 3,933,426.60

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Solution

The fourth proportional to 7,072,970.40, 9,760,566.96 and 3,933,426.60 is: 5,428,055.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072,970.40 : 9,760,566.96 = 3,933,426.60 : x
  2. Step 2: Convert to fraction form
    7,072,970.40/9,760,566.96 = 3,933,426.60/x
  3. Step 3: Cross multiply
    7,072,970.40x = 9,760,566.96 × 3,933,426.60
  4. Step 4: Simplify right side
    7,072,970.40x = 38,392,473,711,545.14
  5. Step 5: Solve for x
    x = 38,392,473,711,545.14/7,072,970.40
  6. Step 6: Final answer
    x = 5,428,055.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.