Home / 20,736,189.40-31,104,284.10-20,400,266.20

Finding the Fourth Proportional to 20,736,189.40, 31,104,284.10 and 20,400,266.20

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Solution

The fourth proportional to 20,736,189.40, 31,104,284.10 and 20,400,266.20 is: 30,600,399.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,189.40 : 31,104,284.10 = 20,400,266.20 : x
  2. Step 2: Convert to fraction form
    20,736,189.40/31,104,284.10 = 20,400,266.20/x
  3. Step 3: Cross multiply
    20,736,189.40x = 31,104,284.10 × 20,400,266.20
  4. Step 4: Simplify right side
    20,736,189.40x = 634,535,675,600,427.38
  5. Step 5: Solve for x
    x = 634,535,675,600,427.38/20,736,189.40
  6. Step 6: Final answer
    x = 30,600,399.30

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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.