Home / 6,430,678.54-9,643,985.47-2,112,017.24

Finding the Fourth Proportional to 6,430,678.54, 9,643,985.47 and 2,112,017.24

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Solution

The fourth proportional to 6,430,678.54, 9,643,985.47 and 2,112,017.24 is: 3,167,358.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430,678.54 : 9,643,985.47 = 2,112,017.24 : x
  2. Step 2: Convert to fraction form
    6,430,678.54/9,643,985.47 = 2,112,017.24/x
  3. Step 3: Cross multiply
    6,430,678.54x = 9,643,985.47 × 2,112,017.24
  4. Step 4: Simplify right side
    6,430,678.54x = 20,368,263,526,729.57
  5. Step 5: Solve for x
    x = 20,368,263,526,729.57/6,430,678.54
  6. Step 6: Final answer
    x = 3,167,358.37

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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.