Home / 12,455,918.80-18,683,878.20-7,062,485.20

Finding the Fourth Proportional to 12,455,918.80, 18,683,878.20 and 7,062,485.20

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Solution

The fourth proportional to 12,455,918.80, 18,683,878.20 and 7,062,485.20 is: 10,593,727.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,918.80 : 18,683,878.20 = 7,062,485.20 : x
  2. Step 2: Convert to fraction form
    12,455,918.80/18,683,878.20 = 7,062,485.20/x
  3. Step 3: Cross multiply
    12,455,918.80x = 18,683,878.20 × 7,062,485.20
  4. Step 4: Simplify right side
    12,455,918.80x = 131,954,613,266,102.64
  5. Step 5: Solve for x
    x = 131,954,613,266,102.64/12,455,918.80
  6. Step 6: Final answer
    x = 10,593,727.80

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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.