Home / 216,021,398.64-298,110,282.86-116,902,121.28

Finding the Fourth Proportional to 216,021,398.64, 298,110,282.86 and 116,902,121.28

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Solution

The fourth proportional to 216,021,398.64, 298,110,282.86 and 116,902,121.28 is: 161,325,334.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,021,398.64 : 298,110,282.86 = 116,902,121.28 : x
  2. Step 2: Convert to fraction form
    216,021,398.64/298,110,282.86 = 116,902,121.28/x
  3. Step 3: Cross multiply
    216,021,398.64x = 298,110,282.86 × 116,902,121.28
  4. Step 4: Simplify right side
    216,021,398.64x = 34,849,724,441,714,828
  5. Step 5: Solve for x
    x = 34,849,724,441,714,828/216,021,398.64
  6. Step 6: Final answer
    x = 161,325,334.72

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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.