Home / 72,362,127.10-108,510,013.05-31,951,810.30

Finding the Fourth Proportional to 72,362,127.10, 108,510,013.05 and 31,951,810.30

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Solution

The fourth proportional to 72,362,127.10, 108,510,013.05 and 31,951,810.30 is: 47,913,065.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,362,127.10 : 108,510,013.05 = 31,951,810.30 : x
  2. Step 2: Convert to fraction form
    72,362,127.10/108,510,013.05 = 31,951,810.30/x
  3. Step 3: Cross multiply
    72,362,127.10x = 108,510,013.05 × 31,951,810.30
  4. Step 4: Simplify right side
    72,362,127.10x = 3,467,091,352,624,124.50
  5. Step 5: Solve for x
    x = 3,467,091,352,624,124.50/72,362,127.10
  6. Step 6: Final answer
    x = 47,913,065.74

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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.