Home / 12,116,869.80-18,175,304.70-9,406,520.70

Finding the Fourth Proportional to 12,116,869.80, 18,175,304.70 and 9,406,520.70

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Solution

The fourth proportional to 12,116,869.80, 18,175,304.70 and 9,406,520.70 is: 14,109,781.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116,869.80 : 18,175,304.70 = 9,406,520.70 : x
  2. Step 2: Convert to fraction form
    12,116,869.80/18,175,304.70 = 9,406,520.70/x
  3. Step 3: Cross multiply
    12,116,869.80x = 18,175,304.70 × 9,406,520.70
  4. Step 4: Simplify right side
    12,116,869.80x = 170,966,379,889,357.28
  5. Step 5: Solve for x
    x = 170,966,379,889,357.28/12,116,869.80
  6. Step 6: Final answer
    x = 14,109,781.05

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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.