Home / 65,778,694.32-90,753,729.83-38,271,308.16

Finding the Fourth Proportional to 65,778,694.32, 90,753,729.83 and 38,271,308.16

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Solution

The fourth proportional to 65,778,694.32, 90,753,729.83 and 38,271,308.16 is: 52,802,263.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,778,694.32 : 90,753,729.83 = 38,271,308.16 : x
  2. Step 2: Convert to fraction form
    65,778,694.32/90,753,729.83 = 38,271,308.16/x
  3. Step 3: Cross multiply
    65,778,694.32x = 90,753,729.83 × 38,271,308.16
  4. Step 4: Simplify right side
    65,778,694.32x = 3,473,263,960,993,314
  5. Step 5: Solve for x
    x = 3,473,263,960,993,314/65,778,694.32
  6. Step 6: Final answer
    x = 52,802,263.66

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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.