Home / 53,042,670.60-79,564,005.90-18,965,128.20

Finding the Fourth Proportional to 53,042,670.60, 79,564,005.90 and 18,965,128.20

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Solution

The fourth proportional to 53,042,670.60, 79,564,005.90 and 18,965,128.20 is: 28,447,692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,042,670.60 : 79,564,005.90 = 18,965,128.20 : x
  2. Step 2: Convert to fraction form
    53,042,670.60/79,564,005.90 = 18,965,128.20/x
  3. Step 3: Cross multiply
    53,042,670.60x = 79,564,005.90 × 18,965,128.20
  4. Step 4: Simplify right side
    53,042,670.60x = 1,508,941,571,999,056.50
  5. Step 5: Solve for x
    x = 1,508,941,571,999,056.50/53,042,670.60
  6. Step 6: Final answer
    x = 28,447,692.30

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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.