Home / 20,334,697.09-28,051,505.74-12,984,802.45

Finding the Fourth Proportional to 20,334,697.09, 28,051,505.74 and 12,984,802.45

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Solution

The fourth proportional to 20,334,697.09, 28,051,505.74 and 12,984,802.45 is: 17,912,401.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,334,697.09 : 28,051,505.74 = 12,984,802.45 : x
  2. Step 2: Convert to fraction form
    20,334,697.09/28,051,505.74 = 12,984,802.45/x
  3. Step 3: Cross multiply
    20,334,697.09x = 28,051,505.74 × 12,984,802.45
  4. Step 4: Simplify right side
    20,334,697.09x = 364,243,260,458,941
  5. Step 5: Solve for x
    x = 364,243,260,458,941/20,334,697.09
  6. Step 6: Final answer
    x = 17,912,401.59

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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.