Home / 78,800,739.80-118,041,677.40-54,567,030.20

Finding the Fourth Proportional to 78,800,739.80, 118,041,677.40 and 54,567,030.20

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Solution

The fourth proportional to 78,800,739.80, 118,041,677.40 and 54,567,030.20 is: 81,740,143.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,800,739.80 : 118,041,677.40 = 54,567,030.20 : x
  2. Step 2: Convert to fraction form
    78,800,739.80/118,041,677.40 = 54,567,030.20/x
  3. Step 3: Cross multiply
    78,800,739.80x = 118,041,677.40 × 54,567,030.20
  4. Step 4: Simplify right side
    78,800,739.80x = 6,441,183,775,544,458
  5. Step 5: Solve for x
    x = 6,441,183,775,544,458/78,800,739.80
  6. Step 6: Final answer
    x = 81,740,143.45

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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.