Home / 129,721,772,059.56-179,023,422,088.80-72,628,583,064.84

Finding the Fourth Proportional to 129,721,772,059.56, 179,023,422,088.80 and 72,628,583,064.84

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Solution

The fourth proportional to 129,721,772,059.56, 179,023,422,088.80 and 72,628,583,064.84 is: 100,231,574,663.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,721,772,059.56 : 179,023,422,088.80 = 72,628,583,064.84 : x
  2. Step 2: Convert to fraction form
    129,721,772,059.56/179,023,422,088.80 = 72,628,583,064.84/x
  3. Step 3: Cross multiply
    129,721,772,059.56x = 179,023,422,088.80 × 72,628,583,064.84
  4. Step 4: Simplify right side
    129,721,772,059.56x = 13,002,217,481,728,321,126,400
  5. Step 5: Solve for x
    x = 13,002,217,481,728,321,126,400/129,721,772,059.56
  6. Step 6: Final answer
    x = 100,231,574,663.96

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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.