Home / 10,201,619.80-15,302,429.70-7,889,851.45

Finding the Fourth Proportional to 10,201,619.80, 15,302,429.70 and 7,889,851.45

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Solution

The fourth proportional to 10,201,619.80, 15,302,429.70 and 7,889,851.45 is: 11,834,777.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,201,619.80 : 15,302,429.70 = 7,889,851.45 : x
  2. Step 2: Convert to fraction form
    10,201,619.80/15,302,429.70 = 7,889,851.45/x
  3. Step 3: Cross multiply
    10,201,619.80x = 15,302,429.70 × 7,889,851.45
  4. Step 4: Simplify right side
    10,201,619.80x = 120,733,897,157,068.06
  5. Step 5: Solve for x
    x = 120,733,897,157,068.06/10,201,619.80
  6. Step 6: Final answer
    x = 11,834,777.18

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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.