Home / 79,155,999.60-118,733,999.40-61,217,977.20

Finding the Fourth Proportional to 79,155,999.60, 118,733,999.40 and 61,217,977.20

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Solution

The fourth proportional to 79,155,999.60, 118,733,999.40 and 61,217,977.20 is: 91,826,965.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,155,999.60 : 118,733,999.40 = 61,217,977.20 : x
  2. Step 2: Convert to fraction form
    79,155,999.60/118,733,999.40 = 61,217,977.20/x
  3. Step 3: Cross multiply
    79,155,999.60x = 118,733,999.40 × 61,217,977.20
  4. Step 4: Simplify right side
    79,155,999.60x = 7,268,655,268,134,014
  5. Step 5: Solve for x
    x = 7,268,655,268,134,014/79,155,999.60
  6. Step 6: Final answer
    x = 91,826,965.80

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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.