Home / 165,912,752.40-248,869,128.60-145,757,360.40

Finding the Fourth Proportional to 165,912,752.40, 248,869,128.60 and 145,757,360.40

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Solution

The fourth proportional to 165,912,752.40, 248,869,128.60 and 145,757,360.40 is: 218,636,040.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,912,752.40 : 248,869,128.60 = 145,757,360.40 : x
  2. Step 2: Convert to fraction form
    165,912,752.40/248,869,128.60 = 145,757,360.40/x
  3. Step 3: Cross multiply
    165,912,752.40x = 248,869,128.60 × 145,757,360.40
  4. Step 4: Simplify right side
    165,912,752.40x = 36,274,507,269,784,152
  5. Step 5: Solve for x
    x = 36,274,507,269,784,152/165,912,752.40
  6. Step 6: Final answer
    x = 218,636,040.60

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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.