Home / 12,749,172.42-19,127,801.30-4,551,638.77

Finding the Fourth Proportional to 12,749,172.42, 19,127,801.30 and 4,551,638.77

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Solution

The fourth proportional to 12,749,172.42, 19,127,801.30 and 4,551,638.77 is: 6,828,901.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,749,172.42 : 19,127,801.30 = 4,551,638.77 : x
  2. Step 2: Convert to fraction form
    12,749,172.42/19,127,801.30 = 4,551,638.77/x
  3. Step 3: Cross multiply
    12,749,172.42x = 19,127,801.30 × 4,551,638.77
  4. Step 4: Simplify right side
    12,749,172.42x = 87,062,841,981,936.39
  5. Step 5: Solve for x
    x = 87,062,841,981,936.39/12,749,172.42
  6. Step 6: Final answer
    x = 6,828,901.45

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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.