Home / 118,355,770.60-163,336,007.64-66,144,804.78

Finding the Fourth Proportional to 118,355,770.60, 163,336,007.64 and 66,144,804.78

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Solution

The fourth proportional to 118,355,770.60, 163,336,007.64 and 66,144,804.78 is: 91,282,649.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,355,770.60 : 163,336,007.64 = 66,144,804.78 : x
  2. Step 2: Convert to fraction form
    118,355,770.60/163,336,007.64 = 66,144,804.78/x
  3. Step 3: Cross multiply
    118,355,770.60x = 163,336,007.64 × 66,144,804.78
  4. Step 4: Simplify right side
    118,355,770.60x = 10,803,828,338,892,388
  5. Step 5: Solve for x
    x = 10,803,828,338,892,388/118,355,770.60
  6. Step 6: Final answer
    x = 91,282,649.63

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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.