Home / 265,890,012.80-366,989,439.84-155,917,155.20

Finding the Fourth Proportional to 265,890,012.80, 366,989,439.84 and 155,917,155.20

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Solution

The fourth proportional to 265,890,012.80, 366,989,439.84 and 155,917,155.20 is: 215,201,574.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,890,012.80 : 366,989,439.84 = 155,917,155.20 : x
  2. Step 2: Convert to fraction form
    265,890,012.80/366,989,439.84 = 155,917,155.20/x
  3. Step 3: Cross multiply
    265,890,012.80x = 366,989,439.84 × 155,917,155.20
  4. Step 4: Simplify right side
    265,890,012.80x = 57,219,949,448,294,336
  5. Step 5: Solve for x
    x = 57,219,949,448,294,336/265,890,012.80
  6. Step 6: Final answer
    x = 215,201,574.69

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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.