Home / 771,846,761.34-1,065,147,720.33-419,421,913.68

Finding the Fourth Proportional to 771,846,761.34, 1,065,147,720.33 and 419,421,913.68

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Solution

The fourth proportional to 771,846,761.34, 1,065,147,720.33 and 419,421,913.68 is: 578,801,800.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,846,761.34 : 1,065,147,720.33 = 419,421,913.68 : x
  2. Step 2: Convert to fraction form
    771,846,761.34/1,065,147,720.33 = 419,421,913.68/x
  3. Step 3: Cross multiply
    771,846,761.34x = 1,065,147,720.33 × 419,421,913.68
  4. Step 4: Simplify right side
    771,846,761.34x = 446,746,295,212,698,048
  5. Step 5: Solve for x
    x = 446,746,295,212,698,048/771,846,761.34
  6. Step 6: Final answer
    x = 578,801,800.55

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Double scale
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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.