Home / 8,124,438.98-11,205,188.34-7,142,278.02

Finding the Fourth Proportional to 8,124,438.98, 11,205,188.34 and 7,142,278.02

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Solution

The fourth proportional to 8,124,438.98, 11,205,188.34 and 7,142,278.02 is: 9,850,596.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124,438.98 : 11,205,188.34 = 7,142,278.02 : x
  2. Step 2: Convert to fraction form
    8,124,438.98/11,205,188.34 = 7,142,278.02/x
  3. Step 3: Cross multiply
    8,124,438.98x = 11,205,188.34 × 7,142,278.02
  4. Step 4: Simplify right side
    8,124,438.98x = 80,030,570,390,742.28
  5. Step 5: Solve for x
    x = 80,030,570,390,742.28/8,124,438.98
  6. Step 6: Final answer
    x = 9,850,596.53

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1.5x scale

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.