Home / 20,552,646.40-30,819,638.40-7,768,902.40

Finding the Fourth Proportional to 20,552,646.40, 30,819,638.40 and 7,768,902.40

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Solution

The fourth proportional to 20,552,646.40, 30,819,638.40 and 7,768,902.40 is: 11,649,826.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552,646.40 : 30,819,638.40 = 7,768,902.40 : x
  2. Step 2: Convert to fraction form
    20,552,646.40/30,819,638.40 = 7,768,902.40/x
  3. Step 3: Cross multiply
    20,552,646.40x = 30,819,638.40 × 7,768,902.40
  4. Step 4: Simplify right side
    20,552,646.40x = 239,434,762,732,892.16
  5. Step 5: Solve for x
    x = 239,434,762,732,892.16/20,552,646.40
  6. Step 6: Final answer
    x = 11,649,826.41

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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.