Home / 15,334,909.21-21,158,400.23-9,372,807.01

Finding the Fourth Proportional to 15,334,909.21, 21,158,400.23 and 9,372,807.01

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Solution

The fourth proportional to 15,334,909.21, 21,158,400.23 and 9,372,807.01 is: 12,932,166.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334,909.21 : 21,158,400.23 = 9,372,807.01 : x
  2. Step 2: Convert to fraction form
    15,334,909.21/21,158,400.23 = 9,372,807.01/x
  3. Step 3: Cross multiply
    15,334,909.21x = 21,158,400.23 × 9,372,807.01
  4. Step 4: Simplify right side
    15,334,909.21x = 198,313,601,996,129.62
  5. Step 5: Solve for x
    x = 198,313,601,996,129.62/15,334,909.21
  6. Step 6: Final answer
    x = 12,932,166.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.