Home / 221,272,880.64-305,357,027.49-122,153,764.37

Finding the Fourth Proportional to 221,272,880.64, 305,357,027.49 and 122,153,764.37

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Solution

The fourth proportional to 221,272,880.64, 305,357,027.49 and 122,153,764.37 is: 168,572,444.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,272,880.64 : 305,357,027.49 = 122,153,764.37 : x
  2. Step 2: Convert to fraction form
    221,272,880.64/305,357,027.49 = 122,153,764.37/x
  3. Step 3: Cross multiply
    221,272,880.64x = 305,357,027.49 × 122,153,764.37
  4. Step 4: Simplify right side
    221,272,880.64x = 37,300,510,383,210,288
  5. Step 5: Solve for x
    x = 37,300,510,383,210,288/221,272,880.64
  6. Step 6: Final answer
    x = 168,572,444.47

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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.