Home / 15,276,312.10-21,081,561.90-8,307,127.68

Finding the Fourth Proportional to 15,276,312.10, 21,081,561.90 and 8,307,127.68

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Solution

The fourth proportional to 15,276,312.10, 21,081,561.90 and 8,307,127.68 is: 11,463,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,276,312.10 : 21,081,561.90 = 8,307,127.68 : x
  2. Step 2: Convert to fraction form
    15,276,312.10/21,081,561.90 = 8,307,127.68/x
  3. Step 3: Cross multiply
    15,276,312.10x = 21,081,561.90 × 8,307,127.68
  4. Step 4: Simplify right side
    15,276,312.10x = 175,127,226,405,499.56
  5. Step 5: Solve for x
    x = 175,127,226,405,499.56/15,276,312.10
  6. Step 6: Final answer
    x = 11,463,972.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.