Home / 757,498,352.48-1,135,243,039.60-389,018,420.72

Finding the Fourth Proportional to 757,498,352.48, 1,135,243,039.60 and 389,018,420.72

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Solution

The fourth proportional to 757,498,352.48, 1,135,243,039.60 and 389,018,420.72 is: 583,011,768.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,498,352.48 : 1,135,243,039.60 = 389,018,420.72 : x
  2. Step 2: Convert to fraction form
    757,498,352.48/1,135,243,039.60 = 389,018,420.72/x
  3. Step 3: Cross multiply
    757,498,352.48x = 1,135,243,039.60 × 389,018,420.72
  4. Step 4: Simplify right side
    757,498,352.48x = 441,630,454,398,564,416
  5. Step 5: Solve for x
    x = 441,630,454,398,564,416/757,498,352.48
  6. Step 6: Final answer
    x = 583,011,768.87

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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.