Home / 124,848,014.80-187,272,022.20-81,765,864.40

Finding the Fourth Proportional to 124,848,014.80, 187,272,022.20 and 81,765,864.40

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Solution

The fourth proportional to 124,848,014.80, 187,272,022.20 and 81,765,864.40 is: 122,648,796.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,848,014.80 : 187,272,022.20 = 81,765,864.40 : x
  2. Step 2: Convert to fraction form
    124,848,014.80/187,272,022.20 = 81,765,864.40/x
  3. Step 3: Cross multiply
    124,848,014.80x = 187,272,022.20 × 81,765,864.40
  4. Step 4: Simplify right side
    124,848,014.80x = 15,312,458,773,118,990
  5. Step 5: Solve for x
    x = 15,312,458,773,118,990/124,848,014.80
  6. Step 6: Final answer
    x = 122,648,796.60

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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.