Home / 20,862,729.60-31,294,094.40-20,106,902.40

Finding the Fourth Proportional to 20,862,729.60, 31,294,094.40 and 20,106,902.40

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Solution

The fourth proportional to 20,862,729.60, 31,294,094.40 and 20,106,902.40 is: 30,160,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862,729.60 : 31,294,094.40 = 20,106,902.40 : x
  2. Step 2: Convert to fraction form
    20,862,729.60/31,294,094.40 = 20,106,902.40/x
  3. Step 3: Cross multiply
    20,862,729.60x = 31,294,094.40 × 20,106,902.40
  4. Step 4: Simplify right side
    20,862,729.60x = 629,227,301,797,186.50
  5. Step 5: Solve for x
    x = 629,227,301,797,186.50/20,862,729.60
  6. Step 6: Final answer
    x = 30,160,353.60

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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.