Home / 20,864,399.60-31,274,510.58-7,018,177.05

Finding the Fourth Proportional to 20,864,399.60, 31,274,510.58 and 7,018,177.05

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Solution

The fourth proportional to 20,864,399.60, 31,274,510.58 and 7,018,177.05 is: 10,519,835.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864,399.60 : 31,274,510.58 = 7,018,177.05 : x
  2. Step 2: Convert to fraction form
    20,864,399.60/31,274,510.58 = 7,018,177.05/x
  3. Step 3: Cross multiply
    20,864,399.60x = 31,274,510.58 × 7,018,177.05
  4. Step 4: Simplify right side
    20,864,399.60x = 219,490,052,402,538.16
  5. Step 5: Solve for x
    x = 219,490,052,402,538.16/20,864,399.60
  6. Step 6: Final answer
    x = 10,519,835.54

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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.