Home / 20,736,439.60-31,113,990.60-7,282,922.80

Finding the Fourth Proportional to 20,736,439.60, 31,113,990.60 and 7,282,922.80

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Solution

The fourth proportional to 20,736,439.60, 31,113,990.60 and 7,282,922.80 is: 10,927,661.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,439.60 : 31,113,990.60 = 7,282,922.80 : x
  2. Step 2: Convert to fraction form
    20,736,439.60/31,113,990.60 = 7,282,922.80/x
  3. Step 3: Cross multiply
    20,736,439.60x = 31,113,990.60 × 7,282,922.80
  4. Step 4: Simplify right side
    20,736,439.60x = 226,600,791,539,725.69
  5. Step 5: Solve for x
    x = 226,600,791,539,725.69/20,736,439.60
  6. Step 6: Final answer
    x = 10,927,661.45

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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.