Home / 84,024,100.40-126,036,150.60-20,198,692.40

Finding the Fourth Proportional to 84,024,100.40, 126,036,150.60 and 20,198,692.40

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Solution

The fourth proportional to 84,024,100.40, 126,036,150.60 and 20,198,692.40 is: 30,298,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,024,100.40 : 126,036,150.60 = 20,198,692.40 : x
  2. Step 2: Convert to fraction form
    84,024,100.40/126,036,150.60 = 20,198,692.40/x
  3. Step 3: Cross multiply
    84,024,100.40x = 126,036,150.60 × 20,198,692.40
  4. Step 4: Simplify right side
    84,024,100.40x = 2,545,765,437,249,475
  5. Step 5: Solve for x
    x = 2,545,765,437,249,475/84,024,100.40
  6. Step 6: Final answer
    x = 30,298,038.60

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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.