Home / 265,890,007.80-366,989,432.94-155,917,150.20

Finding the Fourth Proportional to 265,890,007.80, 366,989,432.94 and 155,917,150.20

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Solution

The fourth proportional to 265,890,007.80, 366,989,432.94 and 155,917,150.20 is: 215,201,567.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,890,007.80 : 366,989,432.94 = 155,917,150.20 : x
  2. Step 2: Convert to fraction form
    265,890,007.80/366,989,432.94 = 155,917,150.20/x
  3. Step 3: Cross multiply
    265,890,007.80x = 366,989,432.94 × 155,917,150.20
  4. Step 4: Simplify right side
    265,890,007.80x = 57,219,946,537,518,800
  5. Step 5: Solve for x
    x = 57,219,946,537,518,800/265,890,007.80
  6. Step 6: Final answer
    x = 215,201,567.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.