Home / 20,736,853.40-31,105,280.10-11,629,602.20

Finding the Fourth Proportional to 20,736,853.40, 31,105,280.10 and 11,629,602.20

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Solution

The fourth proportional to 20,736,853.40, 31,105,280.10 and 11,629,602.20 is: 17,444,403.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,853.40 : 31,105,280.10 = 11,629,602.20 : x
  2. Step 2: Convert to fraction form
    20,736,853.40/31,105,280.10 = 11,629,602.20/x
  3. Step 3: Cross multiply
    20,736,853.40x = 31,105,280.10 × 11,629,602.20
  4. Step 4: Simplify right side
    20,736,853.40x = 361,742,033,882,576.19
  5. Step 5: Solve for x
    x = 361,742,033,882,576.19/20,736,853.40
  6. Step 6: Final answer
    x = 17,444,403.30

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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.