Home / 257,515,814.40-386,273,721.60-175,886,476.80

Finding the Fourth Proportional to 257,515,814.40, 386,273,721.60 and 175,886,476.80

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Solution

The fourth proportional to 257,515,814.40, 386,273,721.60 and 175,886,476.80 is: 263,829,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,515,814.40 : 386,273,721.60 = 175,886,476.80 : x
  2. Step 2: Convert to fraction form
    257,515,814.40/386,273,721.60 = 175,886,476.80/x
  3. Step 3: Cross multiply
    257,515,814.40x = 386,273,721.60 × 175,886,476.80
  4. Step 4: Simplify right side
    257,515,814.40x = 67,940,323,972,648,064
  5. Step 5: Solve for x
    x = 67,940,323,972,648,064/257,515,814.40
  6. Step 6: Final answer
    x = 263,829,715.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.