Home / 86,162,812.72-118,888,419.28-51,358,741.60

Finding the Fourth Proportional to 86,162,812.72, 118,888,419.28 and 51,358,741.60

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Solution

The fourth proportional to 86,162,812.72, 118,888,419.28 and 51,358,741.60 is: 70,865,370.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,162,812.72 : 118,888,419.28 = 51,358,741.60 : x
  2. Step 2: Convert to fraction form
    86,162,812.72/118,888,419.28 = 51,358,741.60/x
  3. Step 3: Cross multiply
    86,162,812.72x = 118,888,419.28 × 51,358,741.60
  4. Step 4: Simplify right side
    86,162,812.72x = 6,105,959,605,033,978
  5. Step 5: Solve for x
    x = 6,105,959,605,033,978/86,162,812.72
  6. Step 6: Final answer
    x = 70,865,370.02

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Why These Related Problems?

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