Home / 28,086,384.63-38,760,407.81-15,696,477.69

Finding the Fourth Proportional to 28,086,384.63, 38,760,407.81 and 15,696,477.69

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Solution

The fourth proportional to 28,086,384.63, 38,760,407.81 and 15,696,477.69 is: 21,661,808.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086,384.63 : 38,760,407.81 = 15,696,477.69 : x
  2. Step 2: Convert to fraction form
    28,086,384.63/38,760,407.81 = 15,696,477.69/x
  3. Step 3: Cross multiply
    28,086,384.63x = 38,760,407.81 × 15,696,477.69
  4. Step 4: Simplify right side
    28,086,384.63x = 608,401,876,444,966.75
  5. Step 5: Solve for x
    x = 608,401,876,444,966.75/28,086,384.63
  6. Step 6: Final answer
    x = 21,661,808.18

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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.