Home / 19,905,721.20-29,834,962.20-10,316,163.60

Finding the Fourth Proportional to 19,905,721.20, 29,834,962.20 and 10,316,163.60

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Solution

The fourth proportional to 19,905,721.20, 29,834,962.20 and 10,316,163.60 is: 15,462,004.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905,721.20 : 29,834,962.20 = 10,316,163.60 : x
  2. Step 2: Convert to fraction form
    19,905,721.20/29,834,962.20 = 10,316,163.60/x
  3. Step 3: Cross multiply
    19,905,721.20x = 29,834,962.20 × 10,316,163.60
  4. Step 4: Simplify right side
    19,905,721.20x = 307,782,351,055,015.88
  5. Step 5: Solve for x
    x = 307,782,351,055,015.88/19,905,721.20
  6. Step 6: Final answer
    x = 15,462,004.51

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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.