Home / 14,278,218.50-21,399,131.90-6,688,453.70

Finding the Fourth Proportional to 14,278,218.50, 21,399,131.90 and 6,688,453.70

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Solution

The fourth proportional to 14,278,218.50, 21,399,131.90 and 6,688,453.70 is: 10,024,156.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278,218.50 : 21,399,131.90 = 6,688,453.70 : x
  2. Step 2: Convert to fraction form
    14,278,218.50/21,399,131.90 = 6,688,453.70/x
  3. Step 3: Cross multiply
    14,278,218.50x = 21,399,131.90 × 6,688,453.70
  4. Step 4: Simplify right side
    14,278,218.50x = 143,127,102,843,068.50
  5. Step 5: Solve for x
    x = 143,127,102,843,068.50/14,278,218.50
  6. Step 6: Final answer
    x = 10,024,156.93

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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.