Home / 20,596,905.40-30,895,358.10-15,828,662.20

Finding the Fourth Proportional to 20,596,905.40, 30,895,358.10 and 15,828,662.20

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Solution

The fourth proportional to 20,596,905.40, 30,895,358.10 and 15,828,662.20 is: 23,742,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,596,905.40 : 30,895,358.10 = 15,828,662.20 : x
  2. Step 2: Convert to fraction form
    20,596,905.40/30,895,358.10 = 15,828,662.20/x
  3. Step 3: Cross multiply
    20,596,905.40x = 30,895,358.10 × 15,828,662.20
  4. Step 4: Simplify right side
    20,596,905.40x = 489,032,186,912,933.81
  5. Step 5: Solve for x
    x = 489,032,186,912,933.81/20,596,905.40
  6. Step 6: Final answer
    x = 23,742,993.30

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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.