Home / 12,636,310.64-18,917,265.08-7,828,541.06

Finding the Fourth Proportional to 12,636,310.64, 18,917,265.08 and 7,828,541.06

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Solution

The fourth proportional to 12,636,310.64, 18,917,265.08 and 7,828,541.06 is: 11,719,764.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636,310.64 : 18,917,265.08 = 7,828,541.06 : x
  2. Step 2: Convert to fraction form
    12,636,310.64/18,917,265.08 = 7,828,541.06/x
  3. Step 3: Cross multiply
    12,636,310.64x = 18,917,265.08 × 7,828,541.06
  4. Step 4: Simplify right side
    12,636,310.64x = 148,094,586,346,669.19
  5. Step 5: Solve for x
    x = 148,094,586,346,669.19/12,636,310.64
  6. Step 6: Final answer
    x = 11,719,764.62

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