Home / 257,554,068.90-355,517,065.59-153,131,891.12

Finding the Fourth Proportional to 257,554,068.90, 355,517,065.59 and 153,131,891.12

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Solution

The fourth proportional to 257,554,068.90, 355,517,065.59 and 153,131,891.12 is: 211,376,977.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,554,068.90 : 355,517,065.59 = 153,131,891.12 : x
  2. Step 2: Convert to fraction form
    257,554,068.90/355,517,065.59 = 153,131,891.12/x
  3. Step 3: Cross multiply
    257,554,068.90x = 355,517,065.59 × 153,131,891.12
  4. Step 4: Simplify right side
    257,554,068.90x = 54,441,000,577,452,192
  5. Step 5: Solve for x
    x = 54,441,000,577,452,192/257,554,068.90
  6. Step 6: Final answer
    x = 211,376,977.31

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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.