Home / 658,362,409.80-986,852,323.13-221,511,430.86

Finding the Fourth Proportional to 658,362,409.80, 986,852,323.13 and 221,511,430.86

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Solution

The fourth proportional to 658,362,409.80, 986,852,323.13 and 221,511,430.86 is: 332,034,555.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,362,409.80 : 986,852,323.13 = 221,511,430.86 : x
  2. Step 2: Convert to fraction form
    658,362,409.80/986,852,323.13 = 221,511,430.86/x
  3. Step 3: Cross multiply
    658,362,409.80x = 986,852,323.13 × 221,511,430.86
  4. Step 4: Simplify right side
    658,362,409.80x = 218,599,070,140,466,688
  5. Step 5: Solve for x
    x = 218,599,070,140,466,688/658,362,409.80
  6. Step 6: Final answer
    x = 332,034,555.57

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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.