Home / 9,145,999.98-12,610,446.12-7,903,390.32

Finding the Fourth Proportional to 9,145,999.98, 12,610,446.12 and 7,903,390.32

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Solution

The fourth proportional to 9,145,999.98, 12,610,446.12 and 7,903,390.32 is: 10,897,143.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145,999.98 : 12,610,446.12 = 7,903,390.32 : x
  2. Step 2: Convert to fraction form
    9,145,999.98/12,610,446.12 = 7,903,390.32/x
  3. Step 3: Cross multiply
    9,145,999.98x = 12,610,446.12 × 7,903,390.32
  4. Step 4: Simplify right side
    9,145,999.98x = 99,665,277,795,689.56
  5. Step 5: Solve for x
    x = 99,665,277,795,689.56/9,145,999.98
  6. Step 6: Final answer
    x = 10,897,143.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.