Home / 498,808,948.92-688,380,341.58-275,786,503.80

Finding the Fourth Proportional to 498,808,948.92, 688,380,341.58 and 275,786,503.80

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Solution

The fourth proportional to 498,808,948.92, 688,380,341.58 and 275,786,503.80 is: 380,598,640.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,808,948.92 : 688,380,341.58 = 275,786,503.80 : x
  2. Step 2: Convert to fraction form
    498,808,948.92/688,380,341.58 = 275,786,503.80/x
  3. Step 3: Cross multiply
    498,808,948.92x = 688,380,341.58 × 275,786,503.80
  4. Step 4: Simplify right side
    498,808,948.92x = 189,846,007,688,997,984
  5. Step 5: Solve for x
    x = 189,846,007,688,997,984/498,808,948.92
  6. Step 6: Final answer
    x = 380,598,640.22

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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.