Home / 20,736,429.60-31,113,975.60-7,282,912.80

Finding the Fourth Proportional to 20,736,429.60, 31,113,975.60 and 7,282,912.80

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Solution

The fourth proportional to 20,736,429.60, 31,113,975.60 and 7,282,912.80 is: 10,927,646.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,429.60 : 31,113,975.60 = 7,282,912.80 : x
  2. Step 2: Convert to fraction form
    20,736,429.60/31,113,975.60 = 7,282,912.80/x
  3. Step 3: Cross multiply
    20,736,429.60x = 31,113,975.60 × 7,282,912.80
  4. Step 4: Simplify right side
    20,736,429.60x = 226,600,371,156,127.69
  5. Step 5: Solve for x
    x = 226,600,371,156,127.69/20,736,429.60
  6. Step 6: Final answer
    x = 10,927,646.44

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1.5x scale

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.