Home / 28,390,386.60-42,570,027.90-13,981,769.64

Finding the Fourth Proportional to 28,390,386.60, 42,570,027.90 and 13,981,769.64

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Solution

The fourth proportional to 28,390,386.60, 42,570,027.90 and 13,981,769.64 is: 20,964,995.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,390,386.60 : 42,570,027.90 = 13,981,769.64 : x
  2. Step 2: Convert to fraction form
    28,390,386.60/42,570,027.90 = 13,981,769.64/x
  3. Step 3: Cross multiply
    28,390,386.60x = 42,570,027.90 × 13,981,769.64
  4. Step 4: Simplify right side
    28,390,386.60x = 595,204,323,666,173
  5. Step 5: Solve for x
    x = 595,204,323,666,173/28,390,386.60
  6. Step 6: Final answer
    x = 20,964,995.37

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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.