Home / 216,140,336.21-298,270,103.36-117,020,291.15

Finding the Fourth Proportional to 216,140,336.21, 298,270,103.36 and 117,020,291.15

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Solution

The fourth proportional to 216,140,336.21, 298,270,103.36 and 117,020,291.15 is: 161,486,074.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,140,336.21 : 298,270,103.36 = 117,020,291.15 : x
  2. Step 2: Convert to fraction form
    216,140,336.21/298,270,103.36 = 117,020,291.15/x
  3. Step 3: Cross multiply
    216,140,336.21x = 298,270,103.36 × 117,020,291.15
  4. Step 4: Simplify right side
    216,140,336.21x = 34,903,654,336,688,372
  5. Step 5: Solve for x
    x = 34,903,654,336,688,372/216,140,336.21
  6. Step 6: Final answer
    x = 161,486,074.04

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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.