Home / 136,630,487.95-188,632,080.62-84,489,433.63

Finding the Fourth Proportional to 136,630,487.95, 188,632,080.62 and 84,489,433.63

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Solution

The fourth proportional to 136,630,487.95, 188,632,080.62 and 84,489,433.63 is: 116,646,129.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,630,487.95 : 188,632,080.62 = 84,489,433.63 : x
  2. Step 2: Convert to fraction form
    136,630,487.95/188,632,080.62 = 84,489,433.63/x
  3. Step 3: Cross multiply
    136,630,487.95x = 188,632,080.62 × 84,489,433.63
  4. Step 4: Simplify right side
    136,630,487.95x = 15,937,417,655,455,108
  5. Step 5: Solve for x
    x = 15,937,417,655,455,108/136,630,487.95
  6. Step 6: Final answer
    x = 116,646,129.97

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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.