Home / 28,608,117.40-42,912,176.10-17,837,579.80

Finding the Fourth Proportional to 28,608,117.40, 42,912,176.10 and 17,837,579.80

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Solution

The fourth proportional to 28,608,117.40, 42,912,176.10 and 17,837,579.80 is: 26,756,369.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608,117.40 : 42,912,176.10 = 17,837,579.80 : x
  2. Step 2: Convert to fraction form
    28,608,117.40/42,912,176.10 = 17,837,579.80/x
  3. Step 3: Cross multiply
    28,608,117.40x = 42,912,176.10 × 17,837,579.80
  4. Step 4: Simplify right side
    28,608,117.40x = 765,449,365,575,402.88
  5. Step 5: Solve for x
    x = 765,449,365,575,402.88/28,608,117.40
  6. Step 6: Final answer
    x = 26,756,369.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.