Home / 12,635,999.80-18,953,999.70-7,534,166.20

Finding the Fourth Proportional to 12,635,999.80, 18,953,999.70 and 7,534,166.20

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Solution

The fourth proportional to 12,635,999.80, 18,953,999.70 and 7,534,166.20 is: 11,301,249.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635,999.80 : 18,953,999.70 = 7,534,166.20 : x
  2. Step 2: Convert to fraction form
    12,635,999.80/18,953,999.70 = 7,534,166.20/x
  3. Step 3: Cross multiply
    12,635,999.80x = 18,953,999.70 × 7,534,166.20
  4. Step 4: Simplify right side
    12,635,999.80x = 142,802,583,894,550.12
  5. Step 5: Solve for x
    x = 142,802,583,894,550.12/12,635,999.80
  6. Step 6: Final answer
    x = 11,301,249.30

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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.