Home / 13,130,987.76-19,699,138.96-4,611,988.54

Finding the Fourth Proportional to 13,130,987.76, 19,699,138.96 and 4,611,988.54

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Solution

The fourth proportional to 13,130,987.76, 19,699,138.96 and 4,611,988.54 is: 6,918,916.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130,987.76 : 19,699,138.96 = 4,611,988.54 : x
  2. Step 2: Convert to fraction form
    13,130,987.76/19,699,138.96 = 4,611,988.54/x
  3. Step 3: Cross multiply
    13,130,987.76x = 19,699,138.96 × 4,611,988.54
  4. Step 4: Simplify right side
    13,130,987.76x = 90,852,203,131,387.52
  5. Step 5: Solve for x
    x = 90,852,203,131,387.52/13,130,987.76
  6. Step 6: Final answer
    x = 6,918,916.14

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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.