Home / 384,912,328.80-577,368,493.20-312,352,917.60

Finding the Fourth Proportional to 384,912,328.80, 577,368,493.20 and 312,352,917.60

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Solution

The fourth proportional to 384,912,328.80, 577,368,493.20 and 312,352,917.60 is: 468,529,376.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,912,328.80 : 577,368,493.20 = 312,352,917.60 : x
  2. Step 2: Convert to fraction form
    384,912,328.80/577,368,493.20 = 312,352,917.60/x
  3. Step 3: Cross multiply
    384,912,328.80x = 577,368,493.20 × 312,352,917.60
  4. Step 4: Simplify right side
    384,912,328.80x = 180,342,733,381,335,776
  5. Step 5: Solve for x
    x = 180,342,733,381,335,776/384,912,328.80
  6. Step 6: Final answer
    x = 468,529,376.40

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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.