Home / 4,970,405.20-7,455,607.80-2,578,920.70

Finding the Fourth Proportional to 4,970,405.20, 7,455,607.80 and 2,578,920.70

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Solution

The fourth proportional to 4,970,405.20, 7,455,607.80 and 2,578,920.70 is: 3,868,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970,405.20 : 7,455,607.80 = 2,578,920.70 : x
  2. Step 2: Convert to fraction form
    4,970,405.20/7,455,607.80 = 2,578,920.70/x
  3. Step 3: Cross multiply
    4,970,405.20x = 7,455,607.80 × 2,578,920.70
  4. Step 4: Simplify right side
    4,970,405.20x = 19,227,421,286,501.46
  5. Step 5: Solve for x
    x = 19,227,421,286,501.46/4,970,405.20
  6. Step 6: Final answer
    x = 3,868,381.05

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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.