Home / 165,113,999.10-247,670,998.65-68,019,728.40

Finding the Fourth Proportional to 165,113,999.10, 247,670,998.65 and 68,019,728.40

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Solution

The fourth proportional to 165,113,999.10, 247,670,998.65 and 68,019,728.40 is: 102,029,592.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,113,999.10 : 247,670,998.65 = 68,019,728.40 : x
  2. Step 2: Convert to fraction form
    165,113,999.10/247,670,998.65 = 68,019,728.40/x
  3. Step 3: Cross multiply
    165,113,999.10x = 247,670,998.65 × 68,019,728.40
  4. Step 4: Simplify right side
    165,113,999.10x = 16,846,514,060,729,768
  5. Step 5: Solve for x
    x = 16,846,514,060,729,768/165,113,999.10
  6. Step 6: Final answer
    x = 102,029,592.60

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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.