Home / 154,483,110.87-213,186,779.10-84,872,975.78

Finding the Fourth Proportional to 154,483,110.87, 213,186,779.10 and 84,872,975.78

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Solution

The fourth proportional to 154,483,110.87, 213,186,779.10 and 84,872,975.78 is: 117,124,753.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,483,110.87 : 213,186,779.10 = 84,872,975.78 : x
  2. Step 2: Convert to fraction form
    154,483,110.87/213,186,779.10 = 84,872,975.78/x
  3. Step 3: Cross multiply
    154,483,110.87x = 213,186,779.10 × 84,872,975.78
  4. Step 4: Simplify right side
    154,483,110.87x = 18,093,796,338,746,144
  5. Step 5: Solve for x
    x = 18,093,796,338,746,144/154,483,110.87
  6. Step 6: Final answer
    x = 117,124,753.88

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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.