Home / 778,845,830.15-1,074,764,669.63-426,353,633.84

Finding the Fourth Proportional to 778,845,830.15, 1,074,764,669.63 and 426,353,633.84

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Solution

The fourth proportional to 778,845,830.15, 1,074,764,669.63 and 426,353,633.84 is: 588,344,707.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,845,830.15 : 1,074,764,669.63 = 426,353,633.84 : x
  2. Step 2: Convert to fraction form
    778,845,830.15/1,074,764,669.63 = 426,353,633.84/x
  3. Step 3: Cross multiply
    778,845,830.15x = 1,074,764,669.63 × 426,353,633.84
  4. Step 4: Simplify right side
    778,845,830.15x = 458,229,822,420,152,704
  5. Step 5: Solve for x
    x = 458,229,822,420,152,704/778,845,830.15
  6. Step 6: Final answer
    x = 588,344,707.87

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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.