Home / 118,873,652.78-178,328,196.50-42,190,259.42

Finding the Fourth Proportional to 118,873,652.78, 178,328,196.50 and 42,190,259.42

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Solution

The fourth proportional to 118,873,652.78, 178,328,196.50 and 42,190,259.42 is: 63,291,677.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,873,652.78 : 178,328,196.50 = 42,190,259.42 : x
  2. Step 2: Convert to fraction form
    118,873,652.78/178,328,196.50 = 42,190,259.42/x
  3. Step 3: Cross multiply
    118,873,652.78x = 178,328,196.50 × 42,190,259.42
  4. Step 4: Simplify right side
    118,873,652.78x = 7,523,712,871,133,144
  5. Step 5: Solve for x
    x = 7,523,712,871,133,144/118,873,652.78
  6. Step 6: Final answer
    x = 63,291,677.30

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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.