Home / 66,516,664.41-91,126,307.93-64,029,774.78

Finding the Fourth Proportional to 66,516,664.41, 91,126,307.93 and 64,029,774.78

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Solution

The fourth proportional to 66,516,664.41, 91,126,307.93 and 64,029,774.78 is: 87,719,326.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,516,664.41 : 91,126,307.93 = 64,029,774.78 : x
  2. Step 2: Convert to fraction form
    66,516,664.41/91,126,307.93 = 64,029,774.78/x
  3. Step 3: Cross multiply
    66,516,664.41x = 91,126,307.93 × 64,029,774.78
  4. Step 4: Simplify right side
    66,516,664.41x = 5,834,796,972,970,679
  5. Step 5: Solve for x
    x = 5,834,796,972,970,679/66,516,664.41
  6. Step 6: Final answer
    x = 87,719,326.05

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.