Home / 30,867,387.36-42,597,776.72-16,929,297.40

Finding the Fourth Proportional to 30,867,387.36, 42,597,776.72 and 16,929,297.40

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Solution

The fourth proportional to 30,867,387.36, 42,597,776.72 and 16,929,297.40 is: 23,362,859.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,867,387.36 : 42,597,776.72 = 16,929,297.40 : x
  2. Step 2: Convert to fraction form
    30,867,387.36/42,597,776.72 = 16,929,297.40/x
  3. Step 3: Cross multiply
    30,867,387.36x = 42,597,776.72 × 16,929,297.40
  4. Step 4: Simplify right side
    30,867,387.36x = 721,150,430,671,676.50
  5. Step 5: Solve for x
    x = 721,150,430,671,676.50/30,867,387.36
  6. Step 6: Final answer
    x = 23,362,859.39

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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.