Home / 221,272,881.14-305,357,028.18-122,153,764.87

Finding the Fourth Proportional to 221,272,881.14, 305,357,028.18 and 122,153,764.87

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Solution

The fourth proportional to 221,272,881.14, 305,357,028.18 and 122,153,764.87 is: 168,572,445.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,272,881.14 : 305,357,028.18 = 122,153,764.87 : x
  2. Step 2: Convert to fraction form
    221,272,881.14/305,357,028.18 = 122,153,764.87/x
  3. Step 3: Cross multiply
    221,272,881.14x = 305,357,028.18 × 122,153,764.87
  4. Step 4: Simplify right side
    221,272,881.14x = 37,300,510,620,174,896
  5. Step 5: Solve for x
    x = 37,300,510,620,174,896/221,272,881.14
  6. Step 6: Final answer
    x = 168,572,445.16

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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.