Home / 28,073,459.20-42,110,188.80-11,896,657.60

Finding the Fourth Proportional to 28,073,459.20, 42,110,188.80 and 11,896,657.60

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Solution

The fourth proportional to 28,073,459.20, 42,110,188.80 and 11,896,657.60 is: 17,844,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,073,459.20 : 42,110,188.80 = 11,896,657.60 : x
  2. Step 2: Convert to fraction form
    28,073,459.20/42,110,188.80 = 11,896,657.60/x
  3. Step 3: Cross multiply
    28,073,459.20x = 42,110,188.80 × 11,896,657.60
  4. Step 4: Simplify right side
    28,073,459.20x = 500,970,497,624,954.81
  5. Step 5: Solve for x
    x = 500,970,497,624,954.81/28,073,459.20
  6. Step 6: Final answer
    x = 17,844,986.40

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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.