Home / 42,529,280.40-63,751,930.20-20,946,214.80

Finding the Fourth Proportional to 42,529,280.40, 63,751,930.20 and 20,946,214.80

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Solution

The fourth proportional to 42,529,280.40, 63,751,930.20 and 20,946,214.80 is: 31,398,641.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,529,280.40 : 63,751,930.20 = 20,946,214.80 : x
  2. Step 2: Convert to fraction form
    42,529,280.40/63,751,930.20 = 20,946,214.80/x
  3. Step 3: Cross multiply
    42,529,280.40x = 63,751,930.20 × 20,946,214.80
  4. Step 4: Simplify right side
    42,529,280.40x = 1,335,361,623,883,807
  5. Step 5: Solve for x
    x = 1,335,361,623,883,807/42,529,280.40
  6. Step 6: Final answer
    x = 31,398,641.39

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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.