Home / 30,340,977.60-45,511,466.40-20,137,310.40

Finding the Fourth Proportional to 30,340,977.60, 45,511,466.40 and 20,137,310.40

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Solution

The fourth proportional to 30,340,977.60, 45,511,466.40 and 20,137,310.40 is: 30,205,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,340,977.60 : 45,511,466.40 = 20,137,310.40 : x
  2. Step 2: Convert to fraction form
    30,340,977.60/45,511,466.40 = 20,137,310.40/x
  3. Step 3: Cross multiply
    30,340,977.60x = 45,511,466.40 × 20,137,310.40
  4. Step 4: Simplify right side
    30,340,977.60x = 916,478,525,655,970.50
  5. Step 5: Solve for x
    x = 916,478,525,655,970.50/30,340,977.60
  6. Step 6: Final answer
    x = 30,205,965.60

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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.