Home / 15,303,659.40-21,118,240.50-8,776,951.56

Finding the Fourth Proportional to 15,303,659.40, 21,118,240.50 and 8,776,951.56

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Solution

The fourth proportional to 15,303,659.40, 21,118,240.50 and 8,776,951.56 is: 12,111,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,303,659.40 : 21,118,240.50 = 8,776,951.56 : x
  2. Step 2: Convert to fraction form
    15,303,659.40/21,118,240.50 = 8,776,951.56/x
  3. Step 3: Cross multiply
    15,303,659.40x = 21,118,240.50 × 8,776,951.56
  4. Step 4: Simplify right side
    15,303,659.40x = 185,353,773,900,930.19
  5. Step 5: Solve for x
    x = 185,353,773,900,930.19/15,303,659.40
  6. Step 6: Final answer
    x = 12,111,728.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.