Home / 177,139,318.40-265,708,977.60-81,587,830.40

Finding the Fourth Proportional to 177,139,318.40, 265,708,977.60 and 81,587,830.40

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Solution

The fourth proportional to 177,139,318.40, 265,708,977.60 and 81,587,830.40 is: 122,381,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,139,318.40 : 265,708,977.60 = 81,587,830.40 : x
  2. Step 2: Convert to fraction form
    177,139,318.40/265,708,977.60 = 81,587,830.40/x
  3. Step 3: Cross multiply
    177,139,318.40x = 265,708,977.60 × 81,587,830.40
  4. Step 4: Simplify right side
    177,139,318.40x = 21,678,619,000,186,200
  5. Step 5: Solve for x
    x = 21,678,619,000,186,200/177,139,318.40
  6. Step 6: Final answer
    x = 122,381,745.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.