Home / 28,768,659.60-43,152,989.40-18,019,117.20

Finding the Fourth Proportional to 28,768,659.60, 43,152,989.40 and 18,019,117.20

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Solution

The fourth proportional to 28,768,659.60, 43,152,989.40 and 18,019,117.20 is: 27,028,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,768,659.60 : 43,152,989.40 = 18,019,117.20 : x
  2. Step 2: Convert to fraction form
    28,768,659.60/43,152,989.40 = 18,019,117.20/x
  3. Step 3: Cross multiply
    28,768,659.60x = 43,152,989.40 × 18,019,117.20
  4. Step 4: Simplify right side
    28,768,659.60x = 777,578,773,528,957.62
  5. Step 5: Solve for x
    x = 777,578,773,528,957.62/28,768,659.60
  6. Step 6: Final answer
    x = 27,028,675.80

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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.