Home / 118,133,262.69-163,023,932.52-65,209,999.74

Finding the Fourth Proportional to 118,133,262.69, 163,023,932.52 and 65,209,999.74

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Solution

The fourth proportional to 118,133,262.69, 163,023,932.52 and 65,209,999.74 is: 89,989,816.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,133,262.69 : 163,023,932.52 = 65,209,999.74 : x
  2. Step 2: Convert to fraction form
    118,133,262.69/163,023,932.52 = 65,209,999.74/x
  3. Step 3: Cross multiply
    118,133,262.69x = 163,023,932.52 × 65,209,999.74
  4. Step 4: Simplify right side
    118,133,262.69x = 10,630,790,597,242,978
  5. Step 5: Solve for x
    x = 10,630,790,597,242,978/118,133,262.69
  6. Step 6: Final answer
    x = 89,989,816.21

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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.