Home / 12,768,387.05-17,620,799.45-6,967,487.10

Finding the Fourth Proportional to 12,768,387.05, 17,620,799.45 and 6,967,487.10

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Solution

The fourth proportional to 12,768,387.05, 17,620,799.45 and 6,967,487.10 is: 9,615,364.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768,387.05 : 17,620,799.45 = 6,967,487.10 : x
  2. Step 2: Convert to fraction form
    12,768,387.05/17,620,799.45 = 6,967,487.10/x
  3. Step 3: Cross multiply
    12,768,387.05x = 17,620,799.45 × 6,967,487.10
  4. Step 4: Simplify right side
    12,768,387.05x = 122,772,692,776,701.81
  5. Step 5: Solve for x
    x = 122,772,692,776,701.81/12,768,387.05
  6. Step 6: Final answer
    x = 9,615,364.29

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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.