Home / 84,344,880.42-116,456,253.66-65,780,760.69

Finding the Fourth Proportional to 84,344,880.42, 116,456,253.66 and 65,780,760.69

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Solution

The fourth proportional to 84,344,880.42, 116,456,253.66 and 65,780,760.69 is: 90,824,492.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,344,880.42 : 116,456,253.66 = 65,780,760.69 : x
  2. Step 2: Convert to fraction form
    84,344,880.42/116,456,253.66 = 65,780,760.69/x
  3. Step 3: Cross multiply
    84,344,880.42x = 116,456,253.66 × 65,780,760.69
  4. Step 4: Simplify right side
    84,344,880.42x = 7,660,580,952,862,396
  5. Step 5: Solve for x
    x = 7,660,580,952,862,396/84,344,880.42
  6. Step 6: Final answer
    x = 90,824,492.43

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1.5x scale

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.