Home / 932,491,923.12-1,286,818,408.08-509,091,114.24

Finding the Fourth Proportional to 932,491,923.12, 1,286,818,408.08 and 509,091,114.24

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Solution

The fourth proportional to 932,491,923.12, 1,286,818,408.08 and 509,091,114.24 is: 702,534,575.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,491,923.12 : 1,286,818,408.08 = 509,091,114.24 : x
  2. Step 2: Convert to fraction form
    932,491,923.12/1,286,818,408.08 = 509,091,114.24/x
  3. Step 3: Cross multiply
    932,491,923.12x = 1,286,818,408.08 × 509,091,114.24
  4. Step 4: Simplify right side
    932,491,923.12x = 655,107,817,193,990,144
  5. Step 5: Solve for x
    x = 655,107,817,193,990,144/932,491,923.12
  6. Step 6: Final answer
    x = 702,534,575.32

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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.