Home / 930,518,791.38-1,284,093,814.05-507,145,820.58

Finding the Fourth Proportional to 930,518,791.38, 1,284,093,814.05 and 507,145,820.58

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Solution

The fourth proportional to 930,518,791.38, 1,284,093,814.05 and 507,145,820.58 is: 699,849,177.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,518,791.38 : 1,284,093,814.05 = 507,145,820.58 : x
  2. Step 2: Convert to fraction form
    930,518,791.38/1,284,093,814.05 = 507,145,820.58/x
  3. Step 3: Cross multiply
    930,518,791.38x = 1,284,093,814.05 × 507,145,820.58
  4. Step 4: Simplify right side
    930,518,791.38x = 651,222,811,028,089,088
  5. Step 5: Solve for x
    x = 651,222,811,028,089,088/930,518,791.38
  6. Step 6: Final answer
    x = 699,849,177.75

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Double scale
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1.5x scale

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.