Home / 221,805,468.51-306,071,005.14-122,684,082.54

Finding the Fourth Proportional to 221,805,468.51, 306,071,005.14 and 122,684,082.54

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Solution

The fourth proportional to 221,805,468.51, 306,071,005.14 and 122,684,082.54 is: 169,292,672.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,805,468.51 : 306,071,005.14 = 122,684,082.54 : x
  2. Step 2: Convert to fraction form
    221,805,468.51/306,071,005.14 = 122,684,082.54/x
  3. Step 3: Cross multiply
    221,805,468.51x = 306,071,005.14 × 122,684,082.54
  4. Step 4: Simplify right side
    221,805,468.51x = 37,550,040,457,696,528
  5. Step 5: Solve for x
    x = 37,550,040,457,696,528/221,805,468.51
  6. Step 6: Final answer
    x = 169,292,672.13

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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.