Home / 19,686,887.70-29,530,331.55-12,884,442.90

Finding the Fourth Proportional to 19,686,887.70, 29,530,331.55 and 12,884,442.90

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Solution

The fourth proportional to 19,686,887.70, 29,530,331.55 and 12,884,442.90 is: 19,326,664.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,686,887.70 : 29,530,331.55 = 12,884,442.90 : x
  2. Step 2: Convert to fraction form
    19,686,887.70/29,530,331.55 = 12,884,442.90/x
  3. Step 3: Cross multiply
    19,686,887.70x = 29,530,331.55 × 12,884,442.90
  4. Step 4: Simplify right side
    19,686,887.70x = 380,481,870,674,043.50
  5. Step 5: Solve for x
    x = 380,481,870,674,043.50/19,686,887.70
  6. Step 6: Final answer
    x = 19,326,664.35

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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.