Home / 207,035,999.70-310,435,901.55-77,647,830.90

Finding the Fourth Proportional to 207,035,999.70, 310,435,901.55 and 77,647,830.90

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Solution

The fourth proportional to 207,035,999.70, 310,435,901.55 and 77,647,830.90 is: 116,427,454.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,035,999.70 : 310,435,901.55 = 77,647,830.90 : x
  2. Step 2: Convert to fraction form
    207,035,999.70/310,435,901.55 = 77,647,830.90/x
  3. Step 3: Cross multiply
    207,035,999.70x = 310,435,901.55 × 77,647,830.90
  4. Step 4: Simplify right side
    207,035,999.70x = 24,104,674,388,843,452
  5. Step 5: Solve for x
    x = 24,104,674,388,843,452/207,035,999.70
  6. Step 6: Final answer
    x = 116,427,454.28

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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.