Home / 10,516,193.80-15,768,069.90-5,477,345.80

Finding the Fourth Proportional to 10,516,193.80, 15,768,069.90 and 5,477,345.80

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Solution

The fourth proportional to 10,516,193.80, 15,768,069.90 and 5,477,345.80 is: 8,212,778.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,516,193.80 : 15,768,069.90 = 5,477,345.80 : x
  2. Step 2: Convert to fraction form
    10,516,193.80/15,768,069.90 = 5,477,345.80/x
  3. Step 3: Cross multiply
    10,516,193.80x = 15,768,069.90 × 5,477,345.80
  4. Step 4: Simplify right side
    10,516,193.80x = 86,367,171,440,871.42
  5. Step 5: Solve for x
    x = 86,367,171,440,871.42/10,516,193.80
  6. Step 6: Final answer
    x = 8,212,778.60

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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.