Home / 519,166,019.31-778,499,251.69-173,878,172.79

Finding the Fourth Proportional to 519,166,019.31, 778,499,251.69 and 173,878,172.79

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Solution

The fourth proportional to 519,166,019.31, 778,499,251.69 and 173,878,172.79 is: 260,733,604.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,166,019.31 : 778,499,251.69 = 173,878,172.79 : x
  2. Step 2: Convert to fraction form
    519,166,019.31/778,499,251.69 = 173,878,172.79/x
  3. Step 3: Cross multiply
    519,166,019.31x = 778,499,251.69 × 173,878,172.79
  4. Step 4: Simplify right side
    519,166,019.31x = 135,364,027,402,239,520
  5. Step 5: Solve for x
    x = 135,364,027,402,239,520/519,166,019.31
  6. Step 6: Final answer
    x = 260,733,604.22

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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.