Home / 8,635,664.45-12,897,508.14-7,824,428.05

Finding the Fourth Proportional to 8,635,664.45, 12,897,508.14 and 7,824,428.05

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Solution

The fourth proportional to 8,635,664.45, 12,897,508.14 and 7,824,428.05 is: 11,685,913.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635,664.45 : 12,897,508.14 = 7,824,428.05 : x
  2. Step 2: Convert to fraction form
    8,635,664.45/12,897,508.14 = 7,824,428.05/x
  3. Step 3: Cross multiply
    8,635,664.45x = 12,897,508.14 × 7,824,428.05
  4. Step 4: Simplify right side
    8,635,664.45x = 100,915,624,417,507.94
  5. Step 5: Solve for x
    x = 100,915,624,417,507.94/8,635,664.45
  6. Step 6: Final answer
    x = 11,685,913.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.