Home / 7,911,258.80-11,835,395.40-6,857,999.60

Finding the Fourth Proportional to 7,911,258.80, 11,835,395.40 and 6,857,999.60

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Solution

The fourth proportional to 7,911,258.80, 11,835,395.40 and 6,857,999.60 is: 10,259,699.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911,258.80 : 11,835,395.40 = 6,857,999.60 : x
  2. Step 2: Convert to fraction form
    7,911,258.80/11,835,395.40 = 6,857,999.60/x
  3. Step 3: Cross multiply
    7,911,258.80x = 11,835,395.40 × 6,857,999.60
  4. Step 4: Simplify right side
    7,911,258.80x = 81,167,136,919,041.84
  5. Step 5: Solve for x
    x = 81,167,136,919,041.84/7,911,258.80
  6. Step 6: Final answer
    x = 10,259,699.37

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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.