Home / 20,466,489,719.40-30,699,734,579.10-18,997,161,642.60

Finding the Fourth Proportional to 20,466,489,719.40, 30,699,734,579.10 and 18,997,161,642.60

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Solution

The fourth proportional to 20,466,489,719.40, 30,699,734,579.10 and 18,997,161,642.60 is: 28,495,742,463.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466,489,719.40 : 30,699,734,579.10 = 18,997,161,642.60 : x
  2. Step 2: Convert to fraction form
    20,466,489,719.40/30,699,734,579.10 = 18,997,161,642.60/x
  3. Step 3: Cross multiply
    20,466,489,719.40x = 30,699,734,579.10 × 18,997,161,642.60
  4. Step 4: Simplify right side
    20,466,489,719.40x = 583,207,820,184,079,302,656
  5. Step 5: Solve for x
    x = 583,207,820,184,079,302,656/20,466,489,719.40
  6. Step 6: Final answer
    x = 28,495,742,463.90

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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.