Home / 688,707,638.68-950,408,687.08-375,434,941.72

Finding the Fourth Proportional to 688,707,638.68, 950,408,687.08 and 375,434,941.72

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Solution

The fourth proportional to 688,707,638.68, 950,408,687.08 and 375,434,941.72 is: 518,095,937.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,707,638.68 : 950,408,687.08 = 375,434,941.72 : x
  2. Step 2: Convert to fraction form
    688,707,638.68/950,408,687.08 = 375,434,941.72/x
  3. Step 3: Cross multiply
    688,707,638.68x = 950,408,687.08 × 375,434,941.72
  4. Step 4: Simplify right side
    688,707,638.68x = 356,816,630,044,061,568
  5. Step 5: Solve for x
    x = 356,816,630,044,061,568/688,707,638.68
  6. Step 6: Final answer
    x = 518,095,937.96

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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.