Home / 558,216,411.87-770,324,568.86-307,318,298.91

Finding the Fourth Proportional to 558,216,411.87, 770,324,568.86 and 307,318,298.91

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Solution

The fourth proportional to 558,216,411.87, 770,324,568.86 and 307,318,298.91 is: 424,091,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,216,411.87 : 770,324,568.86 = 307,318,298.91 : x
  2. Step 2: Convert to fraction form
    558,216,411.87/770,324,568.86 = 307,318,298.91/x
  3. Step 3: Cross multiply
    558,216,411.87x = 770,324,568.86 × 307,318,298.91
  4. Step 4: Simplify right side
    558,216,411.87x = 236,734,836,108,513,920
  5. Step 5: Solve for x
    x = 236,734,836,108,513,920/558,216,411.87
  6. Step 6: Final answer
    x = 424,091,501.20

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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.