Home / 1,138,515,262.52-1,707,810,696.47-391,523,706.14

Finding the Fourth Proportional to 1,138,515,262.52, 1,707,810,696.47 and 391,523,706.14

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Solution

The fourth proportional to 1,138,515,262.52, 1,707,810,696.47 and 391,523,706.14 is: 587,298,559.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,515,262.52 : 1,707,810,696.47 = 391,523,706.14 : x
  2. Step 2: Convert to fraction form
    1,138,515,262.52/1,707,810,696.47 = 391,523,706.14/x
  3. Step 3: Cross multiply
    1,138,515,262.52x = 1,707,810,696.47 × 391,523,706.14
  4. Step 4: Simplify right side
    1,138,515,262.52x = 668,648,373,259,908,736
  5. Step 5: Solve for x
    x = 668,648,373,259,908,736/1,138,515,262.52
  6. Step 6: Final answer
    x = 587,298,559.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.