Home / 65,448,869.45-90,319,713.59-36,079,557.35

Finding the Fourth Proportional to 65,448,869.45, 90,319,713.59 and 36,079,557.35

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Solution

The fourth proportional to 65,448,869.45, 90,319,713.59 and 36,079,557.35 is: 49,789,940.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,448,869.45 : 90,319,713.59 = 36,079,557.35 : x
  2. Step 2: Convert to fraction form
    65,448,869.45/90,319,713.59 = 36,079,557.35/x
  3. Step 3: Cross multiply
    65,448,869.45x = 90,319,713.59 × 36,079,557.35
  4. Step 4: Simplify right side
    65,448,869.45x = 3,258,695,285,944,579.50
  5. Step 5: Solve for x
    x = 3,258,695,285,944,579.50/65,448,869.45
  6. Step 6: Final answer
    x = 49,789,940.05

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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.