Home / 909,624,324.47-1,255,293,764.39-513,146,087.93

Finding the Fourth Proportional to 909,624,324.47, 1,255,293,764.39 and 513,146,087.93

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Solution

The fourth proportional to 909,624,324.47, 1,255,293,764.39 and 513,146,087.93 is: 708,148,481.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,624,324.47 : 1,255,293,764.39 = 513,146,087.93 : x
  2. Step 2: Convert to fraction form
    909,624,324.47/1,255,293,764.39 = 513,146,087.93/x
  3. Step 3: Cross multiply
    909,624,324.47x = 1,255,293,764.39 × 513,146,087.93
  4. Step 4: Simplify right side
    909,624,324.47x = 644,149,084,397,672,704
  5. Step 5: Solve for x
    x = 644,149,084,397,672,704/909,624,324.47
  6. Step 6: Final answer
    x = 708,148,481.82

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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.