Home / 66,480,633.63-91,078,042.87-63,994,571.40

Finding the Fourth Proportional to 66,480,633.63, 91,078,042.87 and 63,994,571.40

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Solution

The fourth proportional to 66,480,633.63, 91,078,042.87 and 63,994,571.40 is: 87,672,153.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,480,633.63 : 91,078,042.87 = 63,994,571.40 : x
  2. Step 2: Convert to fraction form
    66,480,633.63/91,078,042.87 = 63,994,571.40/x
  3. Step 3: Cross multiply
    66,480,633.63x = 91,078,042.87 × 63,994,571.40
  4. Step 4: Simplify right side
    66,480,633.63x = 5,828,500,317,478,042
  5. Step 5: Solve for x
    x = 5,828,500,317,478,042/66,480,633.63
  6. Step 6: Final answer
    x = 87,672,153.52

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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.