Home / 21,022,808.10-31,507,640.10-10,216,841.10

Finding the Fourth Proportional to 21,022,808.10, 31,507,640.10 and 10,216,841.10

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Solution

The fourth proportional to 21,022,808.10, 31,507,640.10 and 10,216,841.10 is: 15,312,347.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022,808.10 : 31,507,640.10 = 10,216,841.10 : x
  2. Step 2: Convert to fraction form
    21,022,808.10/31,507,640.10 = 10,216,841.10/x
  3. Step 3: Cross multiply
    21,022,808.10x = 31,507,640.10 × 10,216,841.10
  4. Step 4: Simplify right side
    21,022,808.10x = 321,908,552,337,688.12
  5. Step 5: Solve for x
    x = 321,908,552,337,688.12/21,022,808.10
  6. Step 6: Final answer
    x = 15,312,347.94

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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.