Home / 55,146,513.40-82,720,220.10-18,763,172.44

Finding the Fourth Proportional to 55,146,513.40, 82,720,220.10 and 18,763,172.44

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Solution

The fourth proportional to 55,146,513.40, 82,720,220.10 and 18,763,172.44 is: 28,144,911.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,146,513.40 : 82,720,220.10 = 18,763,172.44 : x
  2. Step 2: Convert to fraction form
    55,146,513.40/82,720,220.10 = 18,763,172.44/x
  3. Step 3: Cross multiply
    55,146,513.40x = 82,720,220.10 × 18,763,172.44
  4. Step 4: Simplify right side
    55,146,513.40x = 1,552,093,754,011,054
  5. Step 5: Solve for x
    x = 1,552,093,754,011,054/55,146,513.40
  6. Step 6: Final answer
    x = 28,144,911.77

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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.