Home / 21,219,666.39-31,835,710.67-6,842,445.03

Finding the Fourth Proportional to 21,219,666.39, 31,835,710.67 and 6,842,445.03

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Solution

The fourth proportional to 21,219,666.39, 31,835,710.67 and 6,842,445.03 is: 10,265,670.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,219,666.39 : 31,835,710.67 = 6,842,445.03 : x
  2. Step 2: Convert to fraction form
    21,219,666.39/31,835,710.67 = 6,842,445.03/x
  3. Step 3: Cross multiply
    21,219,666.39x = 31,835,710.67 × 6,842,445.03
  4. Step 4: Simplify right side
    21,219,666.39x = 217,834,100,216,247.25
  5. Step 5: Solve for x
    x = 217,834,100,216,247.25/21,219,666.39
  6. Step 6: Final answer
    x = 10,265,670.36

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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.