Home / 170,928,020.80-256,385,810.40-68,664,289.60

Finding the Fourth Proportional to 170,928,020.80, 256,385,810.40 and 68,664,289.60

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Solution

The fourth proportional to 170,928,020.80, 256,385,810.40 and 68,664,289.60 is: 102,993,935.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,928,020.80 : 256,385,810.40 = 68,664,289.60 : x
  2. Step 2: Convert to fraction form
    170,928,020.80/256,385,810.40 = 68,664,289.60/x
  3. Step 3: Cross multiply
    170,928,020.80x = 256,385,810.40 × 68,664,289.60
  4. Step 4: Simplify right side
    170,928,020.80x = 17,604,549,534,636,290
  5. Step 5: Solve for x
    x = 17,604,549,534,636,290/170,928,020.80
  6. Step 6: Final answer
    x = 102,993,935.41

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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.