Home / 20,688,301.80-31,032,452.70-18,456,249.60

Finding the Fourth Proportional to 20,688,301.80, 31,032,452.70 and 18,456,249.60

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Solution

The fourth proportional to 20,688,301.80, 31,032,452.70 and 18,456,249.60 is: 27,684,374.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,688,301.80 : 31,032,452.70 = 18,456,249.60 : x
  2. Step 2: Convert to fraction form
    20,688,301.80/31,032,452.70 = 18,456,249.60/x
  3. Step 3: Cross multiply
    20,688,301.80x = 31,032,452.70 × 18,456,249.60
  4. Step 4: Simplify right side
    20,688,301.80x = 572,742,692,731,394
  5. Step 5: Solve for x
    x = 572,742,692,731,394/20,688,301.80
  6. Step 6: Final answer
    x = 27,684,374.40

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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.