Home / 12,011,531.40-18,017,297.10-9,992,055.60

Finding the Fourth Proportional to 12,011,531.40, 18,017,297.10 and 9,992,055.60

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Solution

The fourth proportional to 12,011,531.40, 18,017,297.10 and 9,992,055.60 is: 14,988,083.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011,531.40 : 18,017,297.10 = 9,992,055.60 : x
  2. Step 2: Convert to fraction form
    12,011,531.40/18,017,297.10 = 9,992,055.60/x
  3. Step 3: Cross multiply
    12,011,531.40x = 18,017,297.10 × 9,992,055.60
  4. Step 4: Simplify right side
    12,011,531.40x = 180,029,834,384,918.78
  5. Step 5: Solve for x
    x = 180,029,834,384,918.78/12,011,531.40
  6. Step 6: Final answer
    x = 14,988,083.40

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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.