Home / 220,910,152.56-304,788,455.28-128,072,134.32

Finding the Fourth Proportional to 220,910,152.56, 304,788,455.28 and 128,072,134.32

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Solution

The fourth proportional to 220,910,152.56, 304,788,455.28 and 128,072,134.32 is: 176,700,380.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,910,152.56 : 304,788,455.28 = 128,072,134.32 : x
  2. Step 2: Convert to fraction form
    220,910,152.56/304,788,455.28 = 128,072,134.32/x
  3. Step 3: Cross multiply
    220,910,152.56x = 304,788,455.28 × 128,072,134.32
  4. Step 4: Simplify right side
    220,910,152.56x = 39,034,907,983,805,464
  5. Step 5: Solve for x
    x = 39,034,907,983,805,464/220,910,152.56
  6. Step 6: Final answer
    x = 176,700,380.36

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1.5x scale

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.