Home / 21,216,822.48-31,847,495.76-18,803,415.60

Finding the Fourth Proportional to 21,216,822.48, 31,847,495.76 and 18,803,415.60

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Solution

The fourth proportional to 21,216,822.48, 31,847,495.76 and 18,803,415.60 is: 28,224,853.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,216,822.48 : 31,847,495.76 = 18,803,415.60 : x
  2. Step 2: Convert to fraction form
    21,216,822.48/31,847,495.76 = 18,803,415.60/x
  3. Step 3: Cross multiply
    21,216,822.48x = 31,847,495.76 × 18,803,415.60
  4. Step 4: Simplify right side
    21,216,822.48x = 598,841,698,594,517.88
  5. Step 5: Solve for x
    x = 598,841,698,594,517.88/21,216,822.48
  6. Step 6: Final answer
    x = 28,224,853.14

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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.