Home / 28,331,371.80-42,497,057.70-9,164,066.40

Finding the Fourth Proportional to 28,331,371.80, 42,497,057.70 and 9,164,066.40

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Solution

The fourth proportional to 28,331,371.80, 42,497,057.70 and 9,164,066.40 is: 13,746,099.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331,371.80 : 42,497,057.70 = 9,164,066.40 : x
  2. Step 2: Convert to fraction form
    28,331,371.80/42,497,057.70 = 9,164,066.40/x
  3. Step 3: Cross multiply
    28,331,371.80x = 42,497,057.70 × 9,164,066.40
  4. Step 4: Simplify right side
    28,331,371.80x = 389,445,858,567,431.31
  5. Step 5: Solve for x
    x = 389,445,858,567,431.31/28,331,371.80
  6. Step 6: Final answer
    x = 13,746,099.60

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1.5x scale

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.