Home / 418,698,664.26-628,141,667.01-127,588,570.50

Finding the Fourth Proportional to 418,698,664.26, 628,141,667.01 and 127,588,570.50

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Solution

The fourth proportional to 418,698,664.26, 628,141,667.01 and 127,588,570.50 is: 191,411,399.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,698,664.26 : 628,141,667.01 = 127,588,570.50 : x
  2. Step 2: Convert to fraction form
    418,698,664.26/628,141,667.01 = 127,588,570.50/x
  3. Step 3: Cross multiply
    418,698,664.26x = 628,141,667.01 × 127,588,570.50
  4. Step 4: Simplify right side
    418,698,664.26x = 80,143,697,365,292,912
  5. Step 5: Solve for x
    x = 80,143,697,365,292,912/418,698,664.26
  6. Step 6: Final answer
    x = 191,411,399.67

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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.