Home / 72,583,477.60-108,875,216.40-65,865,013.60

Finding the Fourth Proportional to 72,583,477.60, 108,875,216.40 and 65,865,013.60

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Solution

The fourth proportional to 72,583,477.60, 108,875,216.40 and 65,865,013.60 is: 98,797,520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,583,477.60 : 108,875,216.40 = 65,865,013.60 : x
  2. Step 2: Convert to fraction form
    72,583,477.60/108,875,216.40 = 65,865,013.60/x
  3. Step 3: Cross multiply
    72,583,477.60x = 108,875,216.40 × 65,865,013.60
  4. Step 4: Simplify right side
    72,583,477.60x = 7,171,067,608,888,944
  5. Step 5: Solve for x
    x = 7,171,067,608,888,944/72,583,477.60
  6. Step 6: Final answer
    x = 98,797,520.40

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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.