Home / 20,019,715.67-30,009,382.02-7,884,490.07

Finding the Fourth Proportional to 20,019,715.67, 30,009,382.02 and 7,884,490.07

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Solution

The fourth proportional to 20,019,715.67, 30,009,382.02 and 7,884,490.07 is: 11,818,782.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019,715.67 : 30,009,382.02 = 7,884,490.07 : x
  2. Step 2: Convert to fraction form
    20,019,715.67/30,009,382.02 = 7,884,490.07/x
  3. Step 3: Cross multiply
    20,019,715.67x = 30,009,382.02 × 7,884,490.07
  4. Step 4: Simplify right side
    20,019,715.67x = 236,608,674,393,479.62
  5. Step 5: Solve for x
    x = 236,608,674,393,479.62/20,019,715.67
  6. Step 6: Final answer
    x = 11,818,782.96

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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.