Home / 154,807,261.98-213,585,925.32-87,815,179.26

Finding the Fourth Proportional to 154,807,261.98, 213,585,925.32 and 87,815,179.26

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Solution

The fourth proportional to 154,807,261.98, 213,585,925.32 and 87,815,179.26 is: 121,157,664.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,807,261.98 : 213,585,925.32 = 87,815,179.26 : x
  2. Step 2: Convert to fraction form
    154,807,261.98/213,585,925.32 = 87,815,179.26/x
  3. Step 3: Cross multiply
    154,807,261.98x = 213,585,925.32 × 87,815,179.26
  4. Step 4: Simplify right side
    154,807,261.98x = 18,756,086,319,388,772
  5. Step 5: Solve for x
    x = 18,756,086,319,388,772/154,807,261.98
  6. Step 6: Final answer
    x = 121,157,664.57

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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.