Home / 486,030,874.70-670,508,867.78-284,985,129.64

Finding the Fourth Proportional to 486,030,874.70, 670,508,867.78 and 284,985,129.64

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Solution

The fourth proportional to 486,030,874.70, 670,508,867.78 and 284,985,129.64 is: 393,154,152.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,030,874.70 : 670,508,867.78 = 284,985,129.64 : x
  2. Step 2: Convert to fraction form
    486,030,874.70/670,508,867.78 = 284,985,129.64/x
  3. Step 3: Cross multiply
    486,030,874.70x = 670,508,867.78 × 284,985,129.64
  4. Step 4: Simplify right side
    486,030,874.70x = 191,085,056,609,052,896
  5. Step 5: Solve for x
    x = 191,085,056,609,052,896/486,030,874.70
  6. Step 6: Final answer
    x = 393,154,152.45

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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.