Home / 10,200,955.80-15,301,433.70-7,889,187.45

Finding the Fourth Proportional to 10,200,955.80, 15,301,433.70 and 7,889,187.45

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Solution

The fourth proportional to 10,200,955.80, 15,301,433.70 and 7,889,187.45 is: 11,833,781.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,200,955.80 : 15,301,433.70 = 7,889,187.45 : x
  2. Step 2: Convert to fraction form
    10,200,955.80/15,301,433.70 = 7,889,187.45/x
  3. Step 3: Cross multiply
    10,200,955.80x = 15,301,433.70 × 7,889,187.45
  4. Step 4: Simplify right side
    10,200,955.80x = 120,715,878,713,047.06
  5. Step 5: Solve for x
    x = 120,715,878,713,047.06/10,200,955.80
  6. Step 6: Final answer
    x = 11,833,781.18

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1.5x scale

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.