Home / 42,768,280.80-64,128,801.60-17,180,380.80

Finding the Fourth Proportional to 42,768,280.80, 64,128,801.60 and 17,180,380.80

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Solution

The fourth proportional to 42,768,280.80, 64,128,801.60 and 17,180,380.80 is: 25,761,083.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,280.80 : 64,128,801.60 = 17,180,380.80 : x
  2. Step 2: Convert to fraction form
    42,768,280.80/64,128,801.60 = 17,180,380.80/x
  3. Step 3: Cross multiply
    42,768,280.80x = 64,128,801.60 × 17,180,380.80
  4. Step 4: Simplify right side
    42,768,280.80x = 1,101,757,231,735,649.38
  5. Step 5: Solve for x
    x = 1,101,757,231,735,649.38/42,768,280.80
  6. Step 6: Final answer
    x = 25,761,083.01

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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.