Home / 7,182,758.16-9,912,417.08-3,919,783.46

Finding the Fourth Proportional to 7,182,758.16, 9,912,417.08 and 3,919,783.46

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Solution

The fourth proportional to 7,182,758.16, 9,912,417.08 and 3,919,783.46 is: 5,409,416.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182,758.16 : 9,912,417.08 = 3,919,783.46 : x
  2. Step 2: Convert to fraction form
    7,182,758.16/9,912,417.08 = 3,919,783.46/x
  3. Step 3: Cross multiply
    7,182,758.16x = 9,912,417.08 × 3,919,783.46
  4. Step 4: Simplify right side
    7,182,758.16x = 38,854,528,449,644.49
  5. Step 5: Solve for x
    x = 38,854,528,449,644.49/7,182,758.16
  6. Step 6: Final answer
    x = 5,409,416.21

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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.