Home / 100,437,399.70-150,656,099.55-77,762,583.70

Finding the Fourth Proportional to 100,437,399.70, 150,656,099.55 and 77,762,583.70

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Solution

The fourth proportional to 100,437,399.70, 150,656,099.55 and 77,762,583.70 is: 116,643,875.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,437,399.70 : 150,656,099.55 = 77,762,583.70 : x
  2. Step 2: Convert to fraction form
    100,437,399.70/150,656,099.55 = 77,762,583.70/x
  3. Step 3: Cross multiply
    100,437,399.70x = 150,656,099.55 × 77,762,583.70
  4. Step 4: Simplify right side
    100,437,399.70x = 11,715,407,551,172,408
  5. Step 5: Solve for x
    x = 11,715,407,551,172,408/100,437,399.70
  6. Step 6: Final answer
    x = 116,643,875.55

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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.