Home / 220,390,128.56-304,129,244.52-119,918,980.64

Finding the Fourth Proportional to 220,390,128.56, 304,129,244.52 and 119,918,980.64

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Solution

The fourth proportional to 220,390,128.56, 304,129,244.52 and 119,918,980.64 is: 165,483,223.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,390,128.56 : 304,129,244.52 = 119,918,980.64 : x
  2. Step 2: Convert to fraction form
    220,390,128.56/304,129,244.52 = 119,918,980.64/x
  3. Step 3: Cross multiply
    220,390,128.56x = 304,129,244.52 × 119,918,980.64
  4. Step 4: Simplify right side
    220,390,128.56x = 36,470,868,985,651,704
  5. Step 5: Solve for x
    x = 36,470,868,985,651,704/220,390,128.56
  6. Step 6: Final answer
    x = 165,483,223.88

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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.