Home / 28,742,043.60-43,113,065.40-18,538,376.40

Finding the Fourth Proportional to 28,742,043.60, 43,113,065.40 and 18,538,376.40

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Solution

The fourth proportional to 28,742,043.60, 43,113,065.40 and 18,538,376.40 is: 27,807,564.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742,043.60 : 43,113,065.40 = 18,538,376.40 : x
  2. Step 2: Convert to fraction form
    28,742,043.60/43,113,065.40 = 18,538,376.40/x
  3. Step 3: Cross multiply
    28,742,043.60x = 43,113,065.40 × 18,538,376.40
  4. Step 4: Simplify right side
    28,742,043.60x = 799,246,234,143,016.50
  5. Step 5: Solve for x
    x = 799,246,234,143,016.50/28,742,043.60
  6. Step 6: Final answer
    x = 27,807,564.60

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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.