Home / 103,474,886.20-155,212,329.30-86,468,774.20

Finding the Fourth Proportional to 103,474,886.20, 155,212,329.30 and 86,468,774.20

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Solution

The fourth proportional to 103,474,886.20, 155,212,329.30 and 86,468,774.20 is: 129,703,161.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,474,886.20 : 155,212,329.30 = 86,468,774.20 : x
  2. Step 2: Convert to fraction form
    103,474,886.20/155,212,329.30 = 86,468,774.20/x
  3. Step 3: Cross multiply
    103,474,886.20x = 155,212,329.30 × 86,468,774.20
  4. Step 4: Simplify right side
    103,474,886.20x = 13,421,019,855,297,746
  5. Step 5: Solve for x
    x = 13,421,019,855,297,746/103,474,886.20
  6. Step 6: Final answer
    x = 129,703,161.30

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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.