Home / 10,621,055.52-15,916,515.12-8,182,985.76

Finding the Fourth Proportional to 10,621,055.52, 15,916,515.12 and 8,182,985.76

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Solution

The fourth proportional to 10,621,055.52, 15,916,515.12 and 8,182,985.76 is: 12,262,869.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621,055.52 : 15,916,515.12 = 8,182,985.76 : x
  2. Step 2: Convert to fraction form
    10,621,055.52/15,916,515.12 = 8,182,985.76/x
  3. Step 3: Cross multiply
    10,621,055.52x = 15,916,515.12 × 8,182,985.76
  4. Step 4: Simplify right side
    10,621,055.52x = 130,244,616,575,784.69
  5. Step 5: Solve for x
    x = 130,244,616,575,784.69/10,621,055.52
  6. Step 6: Final answer
    x = 12,262,869.39

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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.