Home / 519,166,018.31-778,499,250.20-173,878,171.79

Finding the Fourth Proportional to 519,166,018.31, 778,499,250.20 and 173,878,171.79

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Solution

The fourth proportional to 519,166,018.31, 778,499,250.20 and 173,878,171.79 is: 260,733,602.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,166,018.31 : 778,499,250.20 = 173,878,171.79 : x
  2. Step 2: Convert to fraction form
    519,166,018.31/778,499,250.20 = 173,878,171.79/x
  3. Step 3: Cross multiply
    519,166,018.31x = 778,499,250.20 × 173,878,171.79
  4. Step 4: Simplify right side
    519,166,018.31x = 135,364,026,363,792,400
  5. Step 5: Solve for x
    x = 135,364,026,363,792,400/519,166,018.31
  6. Step 6: Final answer
    x = 260,733,602.72

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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.