Home / 289,448,490.40-434,040,025.20-127,807,223.20

Finding the Fourth Proportional to 289,448,490.40, 434,040,025.20 and 127,807,223.20

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Solution

The fourth proportional to 289,448,490.40, 434,040,025.20 and 127,807,223.20 is: 191,652,235.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,448,490.40 : 434,040,025.20 = 127,807,223.20 : x
  2. Step 2: Convert to fraction form
    289,448,490.40/434,040,025.20 = 127,807,223.20/x
  3. Step 3: Cross multiply
    289,448,490.40x = 434,040,025.20 × 127,807,223.20
  4. Step 4: Simplify right side
    289,448,490.40x = 55,473,450,378,470,024
  5. Step 5: Solve for x
    x = 55,473,450,378,470,024/289,448,490.40
  6. Step 6: Final answer
    x = 191,652,235.95

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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.