Home / 472,886,747.19-709,397,817.75-145,389,759.30

Finding the Fourth Proportional to 472,886,747.19, 709,397,817.75 and 145,389,759.30

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Solution

The fourth proportional to 472,886,747.19, 709,397,817.75 and 145,389,759.30 is: 218,105,452.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,886,747.19 : 709,397,817.75 = 145,389,759.30 : x
  2. Step 2: Convert to fraction form
    472,886,747.19/709,397,817.75 = 145,389,759.30/x
  3. Step 3: Cross multiply
    472,886,747.19x = 709,397,817.75 × 145,389,759.30
  4. Step 4: Simplify right side
    472,886,747.19x = 103,139,177,970,617,776
  5. Step 5: Solve for x
    x = 103,139,177,970,617,776/472,886,747.19
  6. Step 6: Final answer
    x = 218,105,452.49

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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.