Home / 15,402,011.42-21,253,933.70-8,431,340.48

Finding the Fourth Proportional to 15,402,011.42, 21,253,933.70 and 8,431,340.48

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Solution

The fourth proportional to 15,402,011.42, 21,253,933.70 and 8,431,340.48 is: 11,634,788.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,402,011.42 : 21,253,933.70 = 8,431,340.48 : x
  2. Step 2: Convert to fraction form
    15,402,011.42/21,253,933.70 = 8,431,340.48/x
  3. Step 3: Cross multiply
    15,402,011.42x = 21,253,933.70 × 8,431,340.48
  4. Step 4: Simplify right side
    15,402,011.42x = 179,199,151,521,889.50
  5. Step 5: Solve for x
    x = 179,199,151,521,889.50/15,402,011.42
  6. Step 6: Final answer
    x = 11,634,788.90

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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.