Home / 942,398,076.24-1,300,650,732.90-715,964,450.58

Finding the Fourth Proportional to 942,398,076.24, 1,300,650,732.90 and 715,964,450.58

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Solution

The fourth proportional to 942,398,076.24, 1,300,650,732.90 and 715,964,450.58 is: 988,138,357.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,398,076.24 : 1,300,650,732.90 = 715,964,450.58 : x
  2. Step 2: Convert to fraction form
    942,398,076.24/1,300,650,732.90 = 715,964,450.58/x
  3. Step 3: Cross multiply
    942,398,076.24x = 1,300,650,732.90 × 715,964,450.58
  4. Step 4: Simplify right side
    942,398,076.24x = 931,219,687,377,222,912
  5. Step 5: Solve for x
    x = 931,219,687,377,222,912/942,398,076.24
  6. Step 6: Final answer
    x = 988,138,357.72

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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.