Home / 20,090,969.40-30,148,263.90-7,312,765.80

Finding the Fourth Proportional to 20,090,969.40, 30,148,263.90 and 7,312,765.80

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Solution

The fourth proportional to 20,090,969.40, 30,148,263.90 and 7,312,765.80 is: 10,973,447.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,090,969.40 : 30,148,263.90 = 7,312,765.80 : x
  2. Step 2: Convert to fraction form
    20,090,969.40/30,148,263.90 = 7,312,765.80/x
  3. Step 3: Cross multiply
    20,090,969.40x = 30,148,263.90 × 7,312,765.80
  4. Step 4: Simplify right side
    20,090,969.40x = 220,467,193,177,294.59
  5. Step 5: Solve for x
    x = 220,467,193,177,294.59/20,090,969.40
  6. Step 6: Final answer
    x = 10,973,447.26

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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.