Home / 21,715,339.02-29,978,802.18-16,742,920.20

Finding the Fourth Proportional to 21,715,339.02, 29,978,802.18 and 16,742,920.20

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Solution

The fourth proportional to 21,715,339.02, 29,978,802.18 and 16,742,920.20 is: 23,114,200.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,715,339.02 : 29,978,802.18 = 16,742,920.20 : x
  2. Step 2: Convert to fraction form
    21,715,339.02/29,978,802.18 = 16,742,920.20/x
  3. Step 3: Cross multiply
    21,715,339.02x = 29,978,802.18 × 16,742,920.20
  4. Step 4: Simplify right side
    21,715,339.02x = 501,932,692,591,326
  5. Step 5: Solve for x
    x = 501,932,692,591,326/21,715,339.02
  6. Step 6: Final answer
    x = 23,114,200.16

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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.