Home / 10,500,002.55-15,750,003.83-9,782,557.20

Finding the Fourth Proportional to 10,500,002.55, 15,750,003.83 and 9,782,557.20

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Solution

The fourth proportional to 10,500,002.55, 15,750,003.83 and 9,782,557.20 is: 14,673,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,500,002.55 : 15,750,003.83 = 9,782,557.20 : x
  2. Step 2: Convert to fraction form
    10,500,002.55/15,750,003.83 = 9,782,557.20/x
  3. Step 3: Cross multiply
    10,500,002.55x = 15,750,003.83 × 9,782,557.20
  4. Step 4: Simplify right side
    10,500,002.55x = 154,075,313,318,281.28
  5. Step 5: Solve for x
    x = 154,075,313,318,281.28/10,500,002.55
  6. Step 6: Final answer
    x = 14,673,835.80

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1.5x scale

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.