Home / 43,138,068.67-64,708,431.54-18,864,500.95

Finding the Fourth Proportional to 43,138,068.67, 64,708,431.54 and 18,864,500.95

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Solution

The fourth proportional to 43,138,068.67, 64,708,431.54 and 18,864,500.95 is: 28,297,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,138,068.67 : 64,708,431.54 = 18,864,500.95 : x
  2. Step 2: Convert to fraction form
    43,138,068.67/64,708,431.54 = 18,864,500.95/x
  3. Step 3: Cross multiply
    43,138,068.67x = 64,708,431.54 × 18,864,500.95
  4. Step 4: Simplify right side
    43,138,068.67x = 1,220,692,268,259,340
  5. Step 5: Solve for x
    x = 1,220,692,268,259,340/43,138,068.67
  6. Step 6: Final answer
    x = 28,297,332.40

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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.