Home / 12,937,832.80-19,406,749.20-7,898,984.80

Finding the Fourth Proportional to 12,937,832.80, 19,406,749.20 and 7,898,984.80

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Solution

The fourth proportional to 12,937,832.80, 19,406,749.20 and 7,898,984.80 is: 11,848,477.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,937,832.80 : 19,406,749.20 = 7,898,984.80 : x
  2. Step 2: Convert to fraction form
    12,937,832.80/19,406,749.20 = 7,898,984.80/x
  3. Step 3: Cross multiply
    12,937,832.80x = 19,406,749.20 × 7,898,984.80
  4. Step 4: Simplify right side
    12,937,832.80x = 153,293,616,948,212.16
  5. Step 5: Solve for x
    x = 153,293,616,948,212.16/12,937,832.80
  6. Step 6: Final answer
    x = 11,848,477.20

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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.