Home / 28,471,621.57-42,775,564.54-18,256,495.10

Finding the Fourth Proportional to 28,471,621.57, 42,775,564.54 and 18,256,495.10

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Solution

The fourth proportional to 28,471,621.57, 42,775,564.54 and 18,256,495.10 is: 27,428,430.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471,621.57 : 42,775,564.54 = 18,256,495.10 : x
  2. Step 2: Convert to fraction form
    28,471,621.57/42,775,564.54 = 18,256,495.10/x
  3. Step 3: Cross multiply
    28,471,621.57x = 42,775,564.54 × 18,256,495.10
  4. Step 4: Simplify right side
    28,471,621.57x = 780,931,884,164,724.62
  5. Step 5: Solve for x
    x = 780,931,884,164,724.62/28,471,621.57
  6. Step 6: Final answer
    x = 27,428,430.18

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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.