Home / 118,762,645.20-178,143,967.80-73,413,013.20

Finding the Fourth Proportional to 118,762,645.20, 178,143,967.80 and 73,413,013.20

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Solution

The fourth proportional to 118,762,645.20, 178,143,967.80 and 73,413,013.20 is: 110,119,519.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,762,645.20 : 178,143,967.80 = 73,413,013.20 : x
  2. Step 2: Convert to fraction form
    118,762,645.20/178,143,967.80 = 73,413,013.20/x
  3. Step 3: Cross multiply
    118,762,645.20x = 178,143,967.80 × 73,413,013.20
  4. Step 4: Simplify right side
    118,762,645.20x = 13,078,085,459,601,776
  5. Step 5: Solve for x
    x = 13,078,085,459,601,776/118,762,645.20
  6. Step 6: Final answer
    x = 110,119,519.80

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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.