Home / 28,026,016.40-42,039,024.60-7,831,258.40

Finding the Fourth Proportional to 28,026,016.40, 42,039,024.60 and 7,831,258.40

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Solution

The fourth proportional to 28,026,016.40, 42,039,024.60 and 7,831,258.40 is: 11,746,887.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,026,016.40 : 42,039,024.60 = 7,831,258.40 : x
  2. Step 2: Convert to fraction form
    28,026,016.40/42,039,024.60 = 7,831,258.40/x
  3. Step 3: Cross multiply
    28,026,016.40x = 42,039,024.60 × 7,831,258.40
  4. Step 4: Simplify right side
    28,026,016.40x = 329,218,464,526,556.69
  5. Step 5: Solve for x
    x = 329,218,464,526,556.69/28,026,016.40
  6. Step 6: Final answer
    x = 11,746,887.60

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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.