Home / 12,485,799.70-18,724,033.95-8,688,001.30

Finding the Fourth Proportional to 12,485,799.70, 18,724,033.95 and 8,688,001.30

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Solution

The fourth proportional to 12,485,799.70, 18,724,033.95 and 8,688,001.30 is: 13,028,755.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485,799.70 : 18,724,033.95 = 8,688,001.30 : x
  2. Step 2: Convert to fraction form
    12,485,799.70/18,724,033.95 = 8,688,001.30/x
  3. Step 3: Cross multiply
    12,485,799.70x = 18,724,033.95 × 8,688,001.30
  4. Step 4: Simplify right side
    12,485,799.70x = 162,674,431,298,844.16
  5. Step 5: Solve for x
    x = 162,674,431,298,844.16/12,485,799.70
  6. Step 6: Final answer
    x = 13,028,755.48

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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.