Home / 12,778,528.32-19,173,778.11-6,298,070.94

Finding the Fourth Proportional to 12,778,528.32, 19,173,778.11 and 6,298,070.94

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Solution

The fourth proportional to 12,778,528.32, 19,173,778.11 and 6,298,070.94 is: 9,450,056.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778,528.32 : 19,173,778.11 = 6,298,070.94 : x
  2. Step 2: Convert to fraction form
    12,778,528.32/19,173,778.11 = 6,298,070.94/x
  3. Step 3: Cross multiply
    12,778,528.32x = 19,173,778.11 × 6,298,070.94
  4. Step 4: Simplify right side
    12,778,528.32x = 120,757,814,724,599.12
  5. Step 5: Solve for x
    x = 120,757,814,724,599.12/12,778,528.32
  6. Step 6: Final answer
    x = 9,450,056.51

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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.