Home / 20,138,823.80-30,208,235.70-5,762,749.40

Finding the Fourth Proportional to 20,138,823.80, 30,208,235.70 and 5,762,749.40

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Solution

The fourth proportional to 20,138,823.80, 30,208,235.70 and 5,762,749.40 is: 8,644,124.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,138,823.80 : 30,208,235.70 = 5,762,749.40 : x
  2. Step 2: Convert to fraction form
    20,138,823.80/30,208,235.70 = 5,762,749.40/x
  3. Step 3: Cross multiply
    20,138,823.80x = 30,208,235.70 × 5,762,749.40
  4. Step 4: Simplify right side
    20,138,823.80x = 174,082,492,155,233.59
  5. Step 5: Solve for x
    x = 174,082,492,155,233.59/20,138,823.80
  6. Step 6: Final answer
    x = 8,644,124.10

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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.