Home / 285,081,629.32-393,412,648.02-154,701,437.32

Finding the Fourth Proportional to 285,081,629.32, 393,412,648.02 and 154,701,437.32

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Solution

The fourth proportional to 285,081,629.32, 393,412,648.02 and 154,701,437.32 is: 213,487,983.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,081,629.32 : 393,412,648.02 = 154,701,437.32 : x
  2. Step 2: Convert to fraction form
    285,081,629.32/393,412,648.02 = 154,701,437.32/x
  3. Step 3: Cross multiply
    285,081,629.32x = 393,412,648.02 × 154,701,437.32
  4. Step 4: Simplify right side
    285,081,629.32x = 60,861,502,108,561,248
  5. Step 5: Solve for x
    x = 60,861,502,108,561,248/285,081,629.32
  6. Step 6: Final answer
    x = 213,487,983.26

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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.