Home / 21,138,386.93-31,699,803.10-7,301,824.46

Finding the Fourth Proportional to 21,138,386.93, 31,699,803.10 and 7,301,824.46

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Solution

The fourth proportional to 21,138,386.93, 31,699,803.10 and 7,301,824.46 is: 10,950,050.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,138,386.93 : 31,699,803.10 = 7,301,824.46 : x
  2. Step 2: Convert to fraction form
    21,138,386.93/31,699,803.10 = 7,301,824.46/x
  3. Step 3: Cross multiply
    21,138,386.93x = 31,699,803.10 × 7,301,824.46
  4. Step 4: Simplify right side
    21,138,386.93x = 231,466,397,457,755.69
  5. Step 5: Solve for x
    x = 231,466,397,457,755.69/21,138,386.93
  6. Step 6: Final answer
    x = 10,950,050.18

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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.