Home / 10,531,926.80-15,797,890.20-7,340,656.40

Finding the Fourth Proportional to 10,531,926.80, 15,797,890.20 and 7,340,656.40

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Solution

The fourth proportional to 10,531,926.80, 15,797,890.20 and 7,340,656.40 is: 11,010,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531,926.80 : 15,797,890.20 = 7,340,656.40 : x
  2. Step 2: Convert to fraction form
    10,531,926.80/15,797,890.20 = 7,340,656.40/x
  3. Step 3: Cross multiply
    10,531,926.80x = 15,797,890.20 × 7,340,656.40
  4. Step 4: Simplify right side
    10,531,926.80x = 115,966,883,803,127.28
  5. Step 5: Solve for x
    x = 115,966,883,803,127.28/10,531,926.80
  6. Step 6: Final answer
    x = 11,010,984.60

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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.