Home / 139,408,075.20-209,161,879.20-58,653,796.80

Finding the Fourth Proportional to 139,408,075.20, 209,161,879.20 and 58,653,796.80

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Solution

The fourth proportional to 139,408,075.20, 209,161,879.20 and 58,653,796.80 is: 88,001,633.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,408,075.20 : 209,161,879.20 = 58,653,796.80 : x
  2. Step 2: Convert to fraction form
    139,408,075.20/209,161,879.20 = 58,653,796.80/x
  3. Step 3: Cross multiply
    139,408,075.20x = 209,161,879.20 × 58,653,796.80
  4. Step 4: Simplify right side
    139,408,075.20x = 12,268,138,360,902,946
  5. Step 5: Solve for x
    x = 12,268,138,360,902,946/139,408,075.20
  6. Step 6: Final answer
    x = 88,001,633.64

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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.