Home / 6,919,819.79-9,549,641.42-3,979,639.17

Finding the Fourth Proportional to 6,919,819.79, 9,549,641.42 and 3,979,639.17

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Solution

The fourth proportional to 6,919,819.79, 9,549,641.42 and 3,979,639.17 is: 5,492,068.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919,819.79 : 9,549,641.42 = 3,979,639.17 : x
  2. Step 2: Convert to fraction form
    6,919,819.79/9,549,641.42 = 3,979,639.17/x
  3. Step 3: Cross multiply
    6,919,819.79x = 9,549,641.42 × 3,979,639.17
  4. Step 4: Simplify right side
    6,919,819.79x = 38,004,127,085,323.02
  5. Step 5: Solve for x
    x = 38,004,127,085,323.02/6,919,819.79
  6. Step 6: Final answer
    x = 5,492,068.90

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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.