Home / 144,129,970.02-198,899,550.43-78,050,582.21

Finding the Fourth Proportional to 144,129,970.02, 198,899,550.43 and 78,050,582.21

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Solution

The fourth proportional to 144,129,970.02, 198,899,550.43 and 78,050,582.21 is: 107,709,907.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,129,970.02 : 198,899,550.43 = 78,050,582.21 : x
  2. Step 2: Convert to fraction form
    144,129,970.02/198,899,550.43 = 78,050,582.21/x
  3. Step 3: Cross multiply
    144,129,970.02x = 198,899,550.43 × 78,050,582.21
  4. Step 4: Simplify right side
    144,129,970.02x = 15,524,225,712,368,756
  5. Step 5: Solve for x
    x = 15,524,225,712,368,756/144,129,970.02
  6. Step 6: Final answer
    x = 107,709,907.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.