Home / 12,590,038.20-18,857,063.70-9,740,911.80

Finding the Fourth Proportional to 12,590,038.20, 18,857,063.70 and 9,740,911.80

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Solution

The fourth proportional to 12,590,038.20, 18,857,063.70 and 9,740,911.80 is: 14,589,709.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590,038.20 : 18,857,063.70 = 9,740,911.80 : x
  2. Step 2: Convert to fraction form
    12,590,038.20/18,857,063.70 = 9,740,911.80/x
  3. Step 3: Cross multiply
    12,590,038.20x = 18,857,063.70 × 9,740,911.80
  4. Step 4: Simplify right side
    12,590,038.20x = 183,684,994,308,681.66
  5. Step 5: Solve for x
    x = 183,684,994,308,681.66/12,590,038.20
  6. Step 6: Final answer
    x = 14,589,709.05

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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.