Home / 10,631,638.80-15,947,458.20-7,776,291.60

Finding the Fourth Proportional to 10,631,638.80, 15,947,458.20 and 7,776,291.60

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Solution

The fourth proportional to 10,631,638.80, 15,947,458.20 and 7,776,291.60 is: 11,664,437.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,631,638.80 : 15,947,458.20 = 7,776,291.60 : x
  2. Step 2: Convert to fraction form
    10,631,638.80/15,947,458.20 = 7,776,291.60/x
  3. Step 3: Cross multiply
    10,631,638.80x = 15,947,458.20 × 7,776,291.60
  4. Step 4: Simplify right side
    10,631,638.80x = 124,012,085,242,011.11
  5. Step 5: Solve for x
    x = 124,012,085,242,011.11/10,631,638.80
  6. Step 6: Final answer
    x = 11,664,437.40

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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.