Home / 478,336,196.76-660,103,946.12-258,319,622.76

Finding the Fourth Proportional to 478,336,196.76, 660,103,946.12 and 258,319,622.76

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Solution

The fourth proportional to 478,336,196.76, 660,103,946.12 and 258,319,622.76 is: 356,481,076.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,336,196.76 : 660,103,946.12 = 258,319,622.76 : x
  2. Step 2: Convert to fraction form
    478,336,196.76/660,103,946.12 = 258,319,622.76/x
  3. Step 3: Cross multiply
    478,336,196.76x = 660,103,946.12 × 258,319,622.76
  4. Step 4: Simplify right side
    478,336,196.76x = 170,517,802,342,814,176
  5. Step 5: Solve for x
    x = 170,517,802,342,814,176/478,336,196.76
  6. Step 6: Final answer
    x = 356,481,076.49

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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.