Home / 144,293,213.12-199,119,297.47-78,212,292.59

Finding the Fourth Proportional to 144,293,213.12, 199,119,297.47 and 78,212,292.59

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Solution

The fourth proportional to 144,293,213.12, 199,119,297.47 and 78,212,292.59 is: 107,930,071.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,293,213.12 : 199,119,297.47 = 78,212,292.59 : x
  2. Step 2: Convert to fraction form
    144,293,213.12/199,119,297.47 = 78,212,292.59/x
  3. Step 3: Cross multiply
    144,293,213.12x = 199,119,297.47 × 78,212,292.59
  4. Step 4: Simplify right side
    144,293,213.12x = 15,573,576,754,038,888
  5. Step 5: Solve for x
    x = 15,573,576,754,038,888/144,293,213.12
  6. Step 6: Final answer
    x = 107,930,071.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.