Home / 12,406,980.60-18,610,477.65-3,887,983.80

Finding the Fourth Proportional to 12,406,980.60, 18,610,477.65 and 3,887,983.80

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Solution

The fourth proportional to 12,406,980.60, 18,610,477.65 and 3,887,983.80 is: 5,831,977.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,406,980.60 : 18,610,477.65 = 3,887,983.80 : x
  2. Step 2: Convert to fraction form
    12,406,980.60/18,610,477.65 = 3,887,983.80/x
  3. Step 3: Cross multiply
    12,406,980.60x = 18,610,477.65 × 3,887,983.80
  4. Step 4: Simplify right side
    12,406,980.60x = 72,357,235,613,462.06
  5. Step 5: Solve for x
    x = 72,357,235,613,462.06/12,406,980.60
  6. Step 6: Final answer
    x = 5,831,977.82

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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.