Home / 80,142,745.20-120,214,117.80-46,130,521.20

Finding the Fourth Proportional to 80,142,745.20, 120,214,117.80 and 46,130,521.20

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Solution

The fourth proportional to 80,142,745.20, 120,214,117.80 and 46,130,521.20 is: 69,195,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,142,745.20 : 120,214,117.80 = 46,130,521.20 : x
  2. Step 2: Convert to fraction form
    80,142,745.20/120,214,117.80 = 46,130,521.20/x
  3. Step 3: Cross multiply
    80,142,745.20x = 120,214,117.80 × 46,130,521.20
  4. Step 4: Simplify right side
    80,142,745.20x = 5,545,539,909,712,198
  5. Step 5: Solve for x
    x = 5,545,539,909,712,198/80,142,745.20
  6. Step 6: Final answer
    x = 69,195,781.80

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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.