Home / 18,900,903.90-28,332,693.45-9,308,430.30

Finding the Fourth Proportional to 18,900,903.90, 28,332,693.45 and 9,308,430.30

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Solution

The fourth proportional to 18,900,903.90, 28,332,693.45 and 9,308,430.30 is: 13,953,454.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900,903.90 : 28,332,693.45 = 9,308,430.30 : x
  2. Step 2: Convert to fraction form
    18,900,903.90/28,332,693.45 = 9,308,430.30/x
  3. Step 3: Cross multiply
    18,900,903.90x = 28,332,693.45 × 9,308,430.30
  4. Step 4: Simplify right side
    18,900,903.90x = 263,732,902,190,591.56
  5. Step 5: Solve for x
    x = 263,732,902,190,591.56/18,900,903.90
  6. Step 6: Final answer
    x = 13,953,454.48

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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.