Home / 28,515,903.60-42,742,362.60-15,745,573.20

Finding the Fourth Proportional to 28,515,903.60, 42,742,362.60 and 15,745,573.20

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Solution

The fourth proportional to 28,515,903.60, 42,742,362.60 and 15,745,573.20 is: 23,600,970.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,515,903.60 : 42,742,362.60 = 15,745,573.20 : x
  2. Step 2: Convert to fraction form
    28,515,903.60/42,742,362.60 = 15,745,573.20/x
  3. Step 3: Cross multiply
    28,515,903.60x = 42,742,362.60 × 15,745,573.20
  4. Step 4: Simplify right side
    28,515,903.60x = 673,002,999,059,242.25
  5. Step 5: Solve for x
    x = 673,002,999,059,242.25/28,515,903.60
  6. Step 6: Final answer
    x = 23,600,970.48

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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.