Home / 12,554,807.40-18,832,211.10-9,720,455.40

Finding the Fourth Proportional to 12,554,807.40, 18,832,211.10 and 9,720,455.40

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Solution

The fourth proportional to 12,554,807.40, 18,832,211.10 and 9,720,455.40 is: 14,580,683.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,554,807.40 : 18,832,211.10 = 9,720,455.40 : x
  2. Step 2: Convert to fraction form
    12,554,807.40/18,832,211.10 = 9,720,455.40/x
  3. Step 3: Cross multiply
    12,554,807.40x = 18,832,211.10 × 9,720,455.40
  4. Step 4: Simplify right side
    12,554,807.40x = 183,057,668,080,934.97
  5. Step 5: Solve for x
    x = 183,057,668,080,934.97/12,554,807.40
  6. Step 6: Final answer
    x = 14,580,683.10

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Double scale
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Similar ratio
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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.