Home / 20,130,706.78-27,781,161.72-11,429,689.01

Finding the Fourth Proportional to 20,130,706.78, 27,781,161.72 and 11,429,689.01

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Solution

The fourth proportional to 20,130,706.78, 27,781,161.72 and 11,429,689.01 is: 15,773,417.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130,706.78 : 27,781,161.72 = 11,429,689.01 : x
  2. Step 2: Convert to fraction form
    20,130,706.78/27,781,161.72 = 11,429,689.01/x
  3. Step 3: Cross multiply
    20,130,706.78x = 27,781,161.72 × 11,429,689.01
  4. Step 4: Simplify right side
    20,130,706.78x = 317,530,038,738,968.25
  5. Step 5: Solve for x
    x = 317,530,038,738,968.25/20,130,706.78
  6. Step 6: Final answer
    x = 15,773,417.31

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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.