Home / 19,945,423.80-29,918,135.70-7,166,345.40

Finding the Fourth Proportional to 19,945,423.80, 29,918,135.70 and 7,166,345.40

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Solution

The fourth proportional to 19,945,423.80, 29,918,135.70 and 7,166,345.40 is: 10,749,518.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,945,423.80 : 29,918,135.70 = 7,166,345.40 : x
  2. Step 2: Convert to fraction form
    19,945,423.80/29,918,135.70 = 7,166,345.40/x
  3. Step 3: Cross multiply
    19,945,423.80x = 29,918,135.70 × 7,166,345.40
  4. Step 4: Simplify right side
    19,945,423.80x = 214,403,694,150,270.78
  5. Step 5: Solve for x
    x = 214,403,694,150,270.78/19,945,423.80
  6. Step 6: Final answer
    x = 10,749,518.10

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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.