Home / 12,000,856.80-16,559,400.77-7,288,800.21

Finding the Fourth Proportional to 12,000,856.80, 16,559,400.77 and 7,288,800.21

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Solution

The fourth proportional to 12,000,856.80, 16,559,400.77 and 7,288,800.21 is: 10,057,462.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000,856.80 : 16,559,400.77 = 7,288,800.21 : x
  2. Step 2: Convert to fraction form
    12,000,856.80/16,559,400.77 = 7,288,800.21/x
  3. Step 3: Cross multiply
    12,000,856.80x = 16,559,400.77 × 7,288,800.21
  4. Step 4: Simplify right side
    12,000,856.80x = 120,698,163,867,808.59
  5. Step 5: Solve for x
    x = 120,698,163,867,808.59/12,000,856.80
  6. Step 6: Final answer
    x = 10,057,462.22

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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.