Home / 30,643,311-42,288,060.86-16,892,768.28

Finding the Fourth Proportional to 30,643,311, 42,288,060.86 and 16,892,768.28

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Solution

The fourth proportional to 30,643,311, 42,288,060.86 and 16,892,768.28 is: 23,312,181.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,643,311 : 42,288,060.86 = 16,892,768.28 : x
  2. Step 2: Convert to fraction form
    30,643,311/42,288,060.86 = 16,892,768.28/x
  3. Step 3: Cross multiply
    30,643,311x = 42,288,060.86 × 16,892,768.28
  4. Step 4: Simplify right side
    30,643,311x = 714,362,413,118,517.50
  5. Step 5: Solve for x
    x = 714,362,413,118,517.50/30,643,311
  6. Step 6: Final answer
    x = 23,312,181.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.