Home / 65,865,678.28-90,895,952.10-38,365,378

Finding the Fourth Proportional to 65,865,678.28, 90,895,952.10 and 38,365,378

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Solution

The fourth proportional to 65,865,678.28, 90,895,952.10 and 38,365,378 is: 52,944,988.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,865,678.28 : 90,895,952.10 = 38,365,378 : x
  2. Step 2: Convert to fraction form
    65,865,678.28/90,895,952.10 = 38,365,378/x
  3. Step 3: Cross multiply
    65,865,678.28x = 90,895,952.10 × 38,365,378
  4. Step 4: Simplify right side
    65,865,678.28x = 3,487,257,560,986,393.50
  5. Step 5: Solve for x
    x = 3,487,257,560,986,393.50/65,865,678.28
  6. Step 6: Final answer
    x = 52,944,988.23

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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.