Home / 290,440,392.81-435,789,242-152,233,154.29

Finding the Fourth Proportional to 290,440,392.81, 435,789,242 and 152,233,154.29

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Solution

The fourth proportional to 290,440,392.81, 435,789,242 and 152,233,154.29 is: 228,417,164.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,440,392.81 : 435,789,242 = 152,233,154.29 : x
  2. Step 2: Convert to fraction form
    290,440,392.81/435,789,242 = 152,233,154.29/x
  3. Step 3: Cross multiply
    290,440,392.81x = 435,789,242 × 152,233,154.29
  4. Step 4: Simplify right side
    290,440,392.81x = 66,341,570,915,308,144
  5. Step 5: Solve for x
    x = 66,341,570,915,308,144/290,440,392.81
  6. Step 6: Final answer
    x = 228,417,164.27

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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.