Home / 379,393,281.68-523,402,408.43-253,985,881.87

Finding the Fourth Proportional to 379,393,281.68, 523,402,408.43 and 253,985,881.87

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Solution

The fourth proportional to 379,393,281.68, 523,402,408.43 and 253,985,881.87 is: 350,393,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,393,281.68 : 523,402,408.43 = 253,985,881.87 : x
  2. Step 2: Convert to fraction form
    379,393,281.68/523,402,408.43 = 253,985,881.87/x
  3. Step 3: Cross multiply
    379,393,281.68x = 523,402,408.43 × 253,985,881.87
  4. Step 4: Simplify right side
    379,393,281.68x = 132,936,822,278,312,240
  5. Step 5: Solve for x
    x = 132,936,822,278,312,240/379,393,281.68
  6. Step 6: Final answer
    x = 350,393,190.13

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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.