Home / 121,619,392.80-182,174,727.60-56,978,368.80

Finding the Fourth Proportional to 121,619,392.80, 182,174,727.60 and 56,978,368.80

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Solution

The fourth proportional to 121,619,392.80, 182,174,727.60 and 56,978,368.80 is: 85,348,385.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,619,392.80 : 182,174,727.60 = 56,978,368.80 : x
  2. Step 2: Convert to fraction form
    121,619,392.80/182,174,727.60 = 56,978,368.80/x
  3. Step 3: Cross multiply
    121,619,392.80x = 182,174,727.60 × 56,978,368.80
  4. Step 4: Simplify right side
    121,619,392.80x = 10,380,018,815,232,338
  5. Step 5: Solve for x
    x = 10,380,018,815,232,338/121,619,392.80
  6. Step 6: Final answer
    x = 85,348,385.45

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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.