Home / 20,422,014.84-28,182,380.40-11,254,657.59

Finding the Fourth Proportional to 20,422,014.84, 28,182,380.40 and 11,254,657.59

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Solution

The fourth proportional to 20,422,014.84, 28,182,380.40 and 11,254,657.59 is: 15,531,427.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,422,014.84 : 28,182,380.40 = 11,254,657.59 : x
  2. Step 2: Convert to fraction form
    20,422,014.84/28,182,380.40 = 11,254,657.59/x
  3. Step 3: Cross multiply
    20,422,014.84x = 28,182,380.40 × 11,254,657.59
  4. Step 4: Simplify right side
    20,422,014.84x = 317,183,041,473,127.19
  5. Step 5: Solve for x
    x = 317,183,041,473,127.19/20,422,014.84
  6. Step 6: Final answer
    x = 15,531,427.43

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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.