Home / 1,291,967,475.16-1,782,679,935.30-727,364,556.76

Finding the Fourth Proportional to 1,291,967,475.16, 1,782,679,935.30 and 727,364,556.76

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Solution

The fourth proportional to 1,291,967,475.16, 1,782,679,935.30 and 727,364,556.76 is: 1,003,630,684.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,967,475.16 : 1,782,679,935.30 = 727,364,556.76 : x
  2. Step 2: Convert to fraction form
    1,291,967,475.16/1,782,679,935.30 = 727,364,556.76/x
  3. Step 3: Cross multiply
    1,291,967,475.16x = 1,782,679,935.30 × 727,364,556.76
  4. Step 4: Simplify right side
    1,291,967,475.16x = 1,296,658,200,984,429,824
  5. Step 5: Solve for x
    x = 1,296,658,200,984,429,824/1,291,967,475.16
  6. Step 6: Final answer
    x = 1,003,630,684.14

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Double scale
Find fourth proportional to 1,291,967,476.16, 1,782,679,936.68 and 727,364,557.76
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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.