Home / 340,826,680.80-511,240,021.20-286,407,122.40

Finding the Fourth Proportional to 340,826,680.80, 511,240,021.20 and 286,407,122.40

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Solution

The fourth proportional to 340,826,680.80, 511,240,021.20 and 286,407,122.40 is: 429,610,683.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,826,680.80 : 511,240,021.20 = 286,407,122.40 : x
  2. Step 2: Convert to fraction form
    340,826,680.80/511,240,021.20 = 286,407,122.40/x
  3. Step 3: Cross multiply
    340,826,680.80x = 511,240,021.20 × 286,407,122.40
  4. Step 4: Simplify right side
    340,826,680.80x = 146,422,783,327,606,976
  5. Step 5: Solve for x
    x = 146,422,783,327,606,976/340,826,680.80
  6. Step 6: Final answer
    x = 429,610,683.60

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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.