Home / 257,554,068.40-355,517,064.90-153,131,890.61

Finding the Fourth Proportional to 257,554,068.40, 355,517,064.90 and 153,131,890.61

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Solution

The fourth proportional to 257,554,068.40, 355,517,064.90 and 153,131,890.61 is: 211,376,976.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,554,068.40 : 355,517,064.90 = 153,131,890.61 : x
  2. Step 2: Convert to fraction form
    257,554,068.40/355,517,064.90 = 153,131,890.61/x
  3. Step 3: Cross multiply
    257,554,068.40x = 355,517,064.90 × 153,131,890.61
  4. Step 4: Simplify right side
    257,554,068.40x = 54,441,000,292,255,072
  5. Step 5: Solve for x
    x = 54,441,000,292,255,072/257,554,068.40
  6. Step 6: Final answer
    x = 211,376,976.61

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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.