Home / 1,291,967,425.32-1,782,679,866.58-727,364,506.92

Finding the Fourth Proportional to 1,291,967,425.32, 1,782,679,866.58 and 727,364,506.92

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Solution

The fourth proportional to 1,291,967,425.32, 1,782,679,866.58 and 727,364,506.92 is: 1,003,630,615.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,967,425.32 : 1,782,679,866.58 = 727,364,506.92 : x
  2. Step 2: Convert to fraction form
    1,291,967,425.32/1,782,679,866.58 = 727,364,506.92/x
  3. Step 3: Cross multiply
    1,291,967,425.32x = 1,782,679,866.58 × 727,364,506.92
  4. Step 4: Simplify right side
    1,291,967,425.32x = 1,296,658,062,151,172,864
  5. Step 5: Solve for x
    x = 1,296,658,062,151,172,864/1,291,967,425.32
  6. Step 6: Final answer
    x = 1,003,630,615.40

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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.