Home / 13,130,988.65-19,699,140.31-4,611,989.42

Finding the Fourth Proportional to 13,130,988.65, 19,699,140.31 and 4,611,989.42

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Solution

The fourth proportional to 13,130,988.65, 19,699,140.31 and 4,611,989.42 is: 6,918,917.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130,988.65 : 19,699,140.31 = 4,611,989.42 : x
  2. Step 2: Convert to fraction form
    13,130,988.65/19,699,140.31 = 4,611,989.42/x
  3. Step 3: Cross multiply
    13,130,988.65x = 19,699,140.31 × 4,611,989.42
  4. Step 4: Simplify right side
    13,130,988.65x = 90,852,226,692,815.52
  5. Step 5: Solve for x
    x = 90,852,226,692,815.52/13,130,988.65
  6. Step 6: Final answer
    x = 6,918,917.46

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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.