Home / 18,875,925.77-28,309,287.66-5,228,717.72

Finding the Fourth Proportional to 18,875,925.77, 28,309,287.66 and 5,228,717.72

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Solution

The fourth proportional to 18,875,925.77, 28,309,287.66 and 5,228,717.72 is: 7,841,802.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875,925.77 : 28,309,287.66 = 5,228,717.72 : x
  2. Step 2: Convert to fraction form
    18,875,925.77/28,309,287.66 = 5,228,717.72/x
  3. Step 3: Cross multiply
    18,875,925.77x = 28,309,287.66 × 5,228,717.72
  4. Step 4: Simplify right side
    18,875,925.77x = 148,021,274,028,419.34
  5. Step 5: Solve for x
    x = 148,021,274,028,419.34/18,875,925.77
  6. Step 6: Final answer
    x = 7,841,802.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.