Home / 42,775,598.80-64,163,398.20-20,100,782.80

Finding the Fourth Proportional to 42,775,598.80, 64,163,398.20 and 20,100,782.80

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Solution

The fourth proportional to 42,775,598.80, 64,163,398.20 and 20,100,782.80 is: 30,151,174.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,775,598.80 : 64,163,398.20 = 20,100,782.80 : x
  2. Step 2: Convert to fraction form
    42,775,598.80/64,163,398.20 = 20,100,782.80/x
  3. Step 3: Cross multiply
    42,775,598.80x = 64,163,398.20 × 20,100,782.80
  4. Step 4: Simplify right side
    42,775,598.80x = 1,289,734,530,928,111
  5. Step 5: Solve for x
    x = 1,289,734,530,928,111/42,775,598.80
  6. Step 6: Final answer
    x = 30,151,174.20

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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.