Home / 28,341,980.06-42,519,716.65-9,172,737.12

Finding the Fourth Proportional to 28,341,980.06, 42,519,716.65 and 9,172,737.12

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Solution

The fourth proportional to 28,341,980.06, 42,519,716.65 and 9,172,737.12 is: 13,761,289.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341,980.06 : 42,519,716.65 = 9,172,737.12 : x
  2. Step 2: Convert to fraction form
    28,341,980.06/42,519,716.65 = 9,172,737.12/x
  3. Step 3: Cross multiply
    28,341,980.06x = 42,519,716.65 × 9,172,737.12
  4. Step 4: Simplify right side
    28,341,980.06x = 390,022,183,153,284.69
  5. Step 5: Solve for x
    x = 390,022,183,153,284.69/28,341,980.06
  6. Step 6: Final answer
    x = 13,761,289.16

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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.