Home / 456,154,878.26-684,233,438.65-128,632,107.92

Finding the Fourth Proportional to 456,154,878.26, 684,233,438.65 and 128,632,107.92

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Solution

The fourth proportional to 456,154,878.26, 684,233,438.65 and 128,632,107.92 is: 192,948,478.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,154,878.26 : 684,233,438.65 = 128,632,107.92 : x
  2. Step 2: Convert to fraction form
    456,154,878.26/684,233,438.65 = 128,632,107.92/x
  3. Step 3: Cross multiply
    456,154,878.26x = 684,233,438.65 × 128,632,107.92
  4. Step 4: Simplify right side
    456,154,878.26x = 88,014,389,519,879,680
  5. Step 5: Solve for x
    x = 88,014,389,519,879,680/456,154,878.26
  6. Step 6: Final answer
    x = 192,948,478.06

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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.