Home / 118,355,771.60-163,336,009.02-66,144,805.78

Finding the Fourth Proportional to 118,355,771.60, 163,336,009.02 and 66,144,805.78

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Solution

The fourth proportional to 118,355,771.60, 163,336,009.02 and 66,144,805.78 is: 91,282,651.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,355,771.60 : 163,336,009.02 = 66,144,805.78 : x
  2. Step 2: Convert to fraction form
    118,355,771.60/163,336,009.02 = 66,144,805.78/x
  3. Step 3: Cross multiply
    118,355,771.60x = 163,336,009.02 × 66,144,805.78
  4. Step 4: Simplify right side
    118,355,771.60x = 10,803,828,593,508,230
  5. Step 5: Solve for x
    x = 10,803,828,593,508,230/118,355,771.60
  6. Step 6: Final answer
    x = 91,282,651.01

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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.