Home / 21,184,830.20-31,744,586.10-15,768,068.60

Finding the Fourth Proportional to 21,184,830.20, 31,744,586.10 and 15,768,068.60

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Solution

The fourth proportional to 21,184,830.20, 31,744,586.10 and 15,768,068.60 is: 23,627,794.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184,830.20 : 31,744,586.10 = 15,768,068.60 : x
  2. Step 2: Convert to fraction form
    21,184,830.20/31,744,586.10 = 15,768,068.60/x
  3. Step 3: Cross multiply
    21,184,830.20x = 31,744,586.10 × 15,768,068.60
  4. Step 4: Simplify right side
    21,184,830.20x = 500,550,811,303,406.50
  5. Step 5: Solve for x
    x = 500,550,811,303,406.50/21,184,830.20
  6. Step 6: Final answer
    x = 23,627,794.35

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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.