Home / 198,528,078.20-297,792,117.30-147,509,742.20

Finding the Fourth Proportional to 198,528,078.20, 297,792,117.30 and 147,509,742.20

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Solution

The fourth proportional to 198,528,078.20, 297,792,117.30 and 147,509,742.20 is: 221,264,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,528,078.20 : 297,792,117.30 = 147,509,742.20 : x
  2. Step 2: Convert to fraction form
    198,528,078.20/297,792,117.30 = 147,509,742.20/x
  3. Step 3: Cross multiply
    198,528,078.20x = 297,792,117.30 × 147,509,742.20
  4. Step 4: Simplify right side
    198,528,078.20x = 43,927,238,452,115,160
  5. Step 5: Solve for x
    x = 43,927,238,452,115,160/198,528,078.20
  6. Step 6: Final answer
    x = 221,264,613.30

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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.