Home / 220,901,134,122.68-304,851,086,742.54-128,194,810,965.76

Finding the Fourth Proportional to 220,901,134,122.68, 304,851,086,742.54 and 128,194,810,965.76

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Solution

The fourth proportional to 220,901,134,122.68, 304,851,086,742.54 and 128,194,810,965.76 is: 176,913,204,148.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,901,134,122.68 : 304,851,086,742.54 = 128,194,810,965.76 : x
  2. Step 2: Convert to fraction form
    220,901,134,122.68/304,851,086,742.54 = 128,194,810,965.76/x
  3. Step 3: Cross multiply
    220,901,134,122.68x = 304,851,086,742.54 × 128,194,810,965.76
  4. Step 4: Simplify right side
    220,901,134,122.68x = 39,080,327,437,666,417,115,136
  5. Step 5: Solve for x
    x = 39,080,327,437,666,417,115,136/220,901,134,122.68
  6. Step 6: Final answer
    x = 176,913,204,148.44

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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.