Home / 118,893,315.20-178,339,972.80-100,753,462.40

Finding the Fourth Proportional to 118,893,315.20, 178,339,972.80 and 100,753,462.40

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Solution

The fourth proportional to 118,893,315.20, 178,339,972.80 and 100,753,462.40 is: 151,130,193.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,893,315.20 : 178,339,972.80 = 100,753,462.40 : x
  2. Step 2: Convert to fraction form
    118,893,315.20/178,339,972.80 = 100,753,462.40/x
  3. Step 3: Cross multiply
    118,893,315.20x = 178,339,972.80 × 100,753,462.40
  4. Step 4: Simplify right side
    118,893,315.20x = 17,968,369,743,921,824
  5. Step 5: Solve for x
    x = 17,968,369,743,921,824/118,893,315.20
  6. Step 6: Final answer
    x = 151,130,193.60

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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.