Home / 12,210,012.60-18,326,828.70-7,427,043.60

Finding the Fourth Proportional to 12,210,012.60, 18,326,828.70 and 7,427,043.60

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Solution

The fourth proportional to 12,210,012.60, 18,326,828.70 and 7,427,043.60 is: 11,147,749.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,210,012.60 : 18,326,828.70 = 7,427,043.60 : x
  2. Step 2: Convert to fraction form
    12,210,012.60/18,326,828.70 = 7,427,043.60/x
  3. Step 3: Cross multiply
    12,210,012.60x = 18,326,828.70 × 7,427,043.60
  4. Step 4: Simplify right side
    12,210,012.60x = 136,114,155,804,631.31
  5. Step 5: Solve for x
    x = 136,114,155,804,631.31/12,210,012.60
  6. Step 6: Final answer
    x = 11,147,749.00

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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.