Home / 154,063,261.15-212,483,331.81-135,438,579.18

Finding the Fourth Proportional to 154,063,261.15, 212,483,331.81 and 135,438,579.18

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Solution

The fourth proportional to 154,063,261.15, 212,483,331.81 and 135,438,579.18 is: 186,796,257.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,063,261.15 : 212,483,331.81 = 135,438,579.18 : x
  2. Step 2: Convert to fraction form
    154,063,261.15/212,483,331.81 = 135,438,579.18/x
  3. Step 3: Cross multiply
    154,063,261.15x = 212,483,331.81 × 135,438,579.18
  4. Step 4: Simplify right side
    154,063,261.15x = 28,778,440,559,778,900
  5. Step 5: Solve for x
    x = 28,778,440,559,778,900/154,063,261.15
  6. Step 6: Final answer
    x = 186,796,257.24

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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.