Home / 21,069,723.48-31,607,115.93-7,420,048.44

Finding the Fourth Proportional to 21,069,723.48, 31,607,115.93 and 7,420,048.44

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Solution

The fourth proportional to 21,069,723.48, 31,607,115.93 and 7,420,048.44 is: 11,130,963.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069,723.48 : 31,607,115.93 = 7,420,048.44 : x
  2. Step 2: Convert to fraction form
    21,069,723.48/31,607,115.93 = 7,420,048.44/x
  3. Step 3: Cross multiply
    21,069,723.48x = 31,607,115.93 × 7,420,048.44
  4. Step 4: Simplify right side
    21,069,723.48x = 234,526,331,249,295.66
  5. Step 5: Solve for x
    x = 234,526,331,249,295.66/21,069,723.48
  6. Step 6: Final answer
    x = 11,130,963.89

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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.