Home / 921,846,574.62-1,383,223,842.54-430,488,432.41

Finding the Fourth Proportional to 921,846,574.62, 1,383,223,842.54 and 430,488,432.41

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Solution

The fourth proportional to 921,846,574.62, 1,383,223,842.54 and 430,488,432.41 is: 645,944,650.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,846,574.62 : 1,383,223,842.54 = 430,488,432.41 : x
  2. Step 2: Convert to fraction form
    921,846,574.62/1,383,223,842.54 = 430,488,432.41/x
  3. Step 3: Cross multiply
    921,846,574.62x = 1,383,223,842.54 × 430,488,432.41
  4. Step 4: Simplify right side
    921,846,574.62x = 595,461,863,640,265,088
  5. Step 5: Solve for x
    x = 595,461,863,640,265,088/921,846,574.62
  6. Step 6: Final answer
    x = 645,944,650.70

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1.5x scale

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.