Home / 7,207,001.28-9,945,508.32-3,943,802.88

Finding the Fourth Proportional to 7,207,001.28, 9,945,508.32 and 3,943,802.88

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Solution

The fourth proportional to 7,207,001.28, 9,945,508.32 and 3,943,802.88 is: 5,442,364.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207,001.28 : 9,945,508.32 = 3,943,802.88 : x
  2. Step 2: Convert to fraction form
    7,207,001.28/9,945,508.32 = 3,943,802.88/x
  3. Step 3: Cross multiply
    7,207,001.28x = 9,945,508.32 × 3,943,802.88
  4. Step 4: Simplify right side
    7,207,001.28x = 39,223,124,355,479.96
  5. Step 5: Solve for x
    x = 39,223,124,355,479.96/7,207,001.28
  6. Step 6: Final answer
    x = 5,442,364.01

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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.