Home / 18,697,090.40-28,045,635.60-8,461,930.40

Finding the Fourth Proportional to 18,697,090.40, 28,045,635.60 and 8,461,930.40

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Solution

The fourth proportional to 18,697,090.40, 28,045,635.60 and 8,461,930.40 is: 12,692,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697,090.40 : 28,045,635.60 = 8,461,930.40 : x
  2. Step 2: Convert to fraction form
    18,697,090.40/28,045,635.60 = 8,461,930.40/x
  3. Step 3: Cross multiply
    18,697,090.40x = 28,045,635.60 × 8,461,930.40
  4. Step 4: Simplify right side
    18,697,090.40x = 237,320,216,470,962.25
  5. Step 5: Solve for x
    x = 237,320,216,470,962.25/18,697,090.40
  6. Step 6: Final answer
    x = 12,692,895.60

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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.