Home / 13,146,645.20-19,719,967.80-7,477,941.20

Finding the Fourth Proportional to 13,146,645.20, 19,719,967.80 and 7,477,941.20

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Solution

The fourth proportional to 13,146,645.20, 19,719,967.80 and 7,477,941.20 is: 11,216,911.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146,645.20 : 19,719,967.80 = 7,477,941.20 : x
  2. Step 2: Convert to fraction form
    13,146,645.20/19,719,967.80 = 7,477,941.20/x
  3. Step 3: Cross multiply
    13,146,645.20x = 19,719,967.80 × 7,477,941.20
  4. Step 4: Simplify right side
    13,146,645.20x = 147,464,759,674,293.38
  5. Step 5: Solve for x
    x = 147,464,759,674,293.38/13,146,645.20
  6. Step 6: Final answer
    x = 11,216,911.80

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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.