Home / 117,122,071.52-161,628,473.76-64,914,477.68

Finding the Fourth Proportional to 117,122,071.52, 161,628,473.76 and 64,914,477.68

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Solution

The fourth proportional to 117,122,071.52, 161,628,473.76 and 64,914,477.68 is: 89,581,987.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,122,071.52 : 161,628,473.76 = 64,914,477.68 : x
  2. Step 2: Convert to fraction form
    117,122,071.52/161,628,473.76 = 64,914,477.68/x
  3. Step 3: Cross multiply
    117,122,071.52x = 161,628,473.76 × 64,914,477.68
  4. Step 4: Simplify right side
    117,122,071.52x = 10,492,027,952,506,626
  5. Step 5: Solve for x
    x = 10,492,027,952,506,626/117,122,071.52
  6. Step 6: Final answer
    x = 89,581,987.55

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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.