Home / 12,415,698.12-17,135,155.08-7,520,776.50

Finding the Fourth Proportional to 12,415,698.12, 17,135,155.08 and 7,520,776.50

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Solution

The fourth proportional to 12,415,698.12, 17,135,155.08 and 7,520,776.50 is: 10,379,575.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415,698.12 : 17,135,155.08 = 7,520,776.50 : x
  2. Step 2: Convert to fraction form
    12,415,698.12/17,135,155.08 = 7,520,776.50/x
  3. Step 3: Cross multiply
    12,415,698.12x = 17,135,155.08 × 7,520,776.50
  4. Step 4: Simplify right side
    12,415,698.12x = 128,869,671,649,519.61
  5. Step 5: Solve for x
    x = 128,869,671,649,519.61/12,415,698.12
  6. Step 6: Final answer
    x = 10,379,575.15

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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.