Home / 20,148,307.40-30,222,461.10-18,384,710.60

Finding the Fourth Proportional to 20,148,307.40, 30,222,461.10 and 18,384,710.60

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Solution

The fourth proportional to 20,148,307.40, 30,222,461.10 and 18,384,710.60 is: 27,577,065.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148,307.40 : 30,222,461.10 = 18,384,710.60 : x
  2. Step 2: Convert to fraction form
    20,148,307.40/30,222,461.10 = 18,384,710.60/x
  3. Step 3: Cross multiply
    20,148,307.40x = 30,222,461.10 × 18,384,710.60
  4. Step 4: Simplify right side
    20,148,307.40x = 555,631,200,943,257.75
  5. Step 5: Solve for x
    x = 555,631,200,943,257.75/20,148,307.40
  6. Step 6: Final answer
    x = 27,577,065.90

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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.