Home / 10,200,036.80-15,300,055.20-8,871,434.30

Finding the Fourth Proportional to 10,200,036.80, 15,300,055.20 and 8,871,434.30

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Solution

The fourth proportional to 10,200,036.80, 15,300,055.20 and 8,871,434.30 is: 13,307,151.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,200,036.80 : 15,300,055.20 = 8,871,434.30 : x
  2. Step 2: Convert to fraction form
    10,200,036.80/15,300,055.20 = 8,871,434.30/x
  3. Step 3: Cross multiply
    10,200,036.80x = 15,300,055.20 × 8,871,434.30
  4. Step 4: Simplify right side
    10,200,036.80x = 135,733,434,493,173.36
  5. Step 5: Solve for x
    x = 135,733,434,493,173.36/10,200,036.80
  6. Step 6: Final answer
    x = 13,307,151.45

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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.