Home / 118,580,031.04-163,603,140.78-66,360,769.60

Finding the Fourth Proportional to 118,580,031.04, 163,603,140.78 and 66,360,769.60

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Solution

The fourth proportional to 118,580,031.04, 163,603,140.78 and 66,360,769.60 is: 91,556,986.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,580,031.04 : 163,603,140.78 = 66,360,769.60 : x
  2. Step 2: Convert to fraction form
    118,580,031.04/163,603,140.78 = 66,360,769.60/x
  3. Step 3: Cross multiply
    118,580,031.04x = 163,603,140.78 × 66,360,769.60
  4. Step 4: Simplify right side
    118,580,031.04x = 10,856,830,331,137,944
  5. Step 5: Solve for x
    x = 10,856,830,331,137,944/118,580,031.04
  6. Step 6: Final answer
    x = 91,556,986.75

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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.