Home / 688,707,639.68-950,408,688.46-375,434,942.72

Finding the Fourth Proportional to 688,707,639.68, 950,408,688.46 and 375,434,942.72

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Solution

The fourth proportional to 688,707,639.68, 950,408,688.46 and 375,434,942.72 is: 518,095,939.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,707,639.68 : 950,408,688.46 = 375,434,942.72 : x
  2. Step 2: Convert to fraction form
    688,707,639.68/950,408,688.46 = 375,434,942.72/x
  3. Step 3: Cross multiply
    688,707,639.68x = 950,408,688.46 × 375,434,942.72
  4. Step 4: Simplify right side
    688,707,639.68x = 356,816,631,512,570,496
  5. Step 5: Solve for x
    x = 356,816,631,512,570,496/688,707,639.68
  6. Step 6: Final answer
    x = 518,095,939.34

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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.