Home / 103,474,880.70-155,212,321.05-86,468,768.70

Finding the Fourth Proportional to 103,474,880.70, 155,212,321.05 and 86,468,768.70

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Solution

The fourth proportional to 103,474,880.70, 155,212,321.05 and 86,468,768.70 is: 129,703,153.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,474,880.70 : 155,212,321.05 = 86,468,768.70 : x
  2. Step 2: Convert to fraction form
    103,474,880.70/155,212,321.05 = 86,468,768.70/x
  3. Step 3: Cross multiply
    103,474,880.70x = 155,212,321.05 × 86,468,768.70
  4. Step 4: Simplify right side
    103,474,880.70x = 13,421,018,288,262,592
  5. Step 5: Solve for x
    x = 13,421,018,288,262,592/103,474,880.70
  6. Step 6: Final answer
    x = 129,703,153.05

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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.