Home / 20,222,688.60-30,334,032.90-13,420,243.80

Finding the Fourth Proportional to 20,222,688.60, 30,334,032.90 and 13,420,243.80

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Solution

The fourth proportional to 20,222,688.60, 30,334,032.90 and 13,420,243.80 is: 20,130,365.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,222,688.60 : 30,334,032.90 = 13,420,243.80 : x
  2. Step 2: Convert to fraction form
    20,222,688.60/30,334,032.90 = 13,420,243.80/x
  3. Step 3: Cross multiply
    20,222,688.60x = 30,334,032.90 × 13,420,243.80
  4. Step 4: Simplify right side
    20,222,688.60x = 407,090,116,955,221
  5. Step 5: Solve for x
    x = 407,090,116,955,221/20,222,688.60
  6. Step 6: Final answer
    x = 20,130,365.70

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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.