Home / 198,528,085.70-297,792,128.55-147,509,749.70

Finding the Fourth Proportional to 198,528,085.70, 297,792,128.55 and 147,509,749.70

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Solution

The fourth proportional to 198,528,085.70, 297,792,128.55 and 147,509,749.70 is: 221,264,624.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,528,085.70 : 297,792,128.55 = 147,509,749.70 : x
  2. Step 2: Convert to fraction form
    198,528,085.70/297,792,128.55 = 147,509,749.70/x
  3. Step 3: Cross multiply
    198,528,085.70x = 297,792,128.55 × 147,509,749.70
  4. Step 4: Simplify right side
    198,528,085.70x = 43,927,242,345,040,720
  5. Step 5: Solve for x
    x = 43,927,242,345,040,720/198,528,085.70
  6. Step 6: Final answer
    x = 221,264,624.55

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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.