Home / 53,042,669.60-79,564,004.40-18,965,127.20

Finding the Fourth Proportional to 53,042,669.60, 79,564,004.40 and 18,965,127.20

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Solution

The fourth proportional to 53,042,669.60, 79,564,004.40 and 18,965,127.20 is: 28,447,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,042,669.60 : 79,564,004.40 = 18,965,127.20 : x
  2. Step 2: Convert to fraction form
    53,042,669.60/79,564,004.40 = 18,965,127.20/x
  3. Step 3: Cross multiply
    53,042,669.60x = 79,564,004.40 × 18,965,127.20
  4. Step 4: Simplify right side
    53,042,669.60x = 1,508,941,463,987,359.75
  5. Step 5: Solve for x
    x = 1,508,941,463,987,359.75/53,042,669.60
  6. Step 6: Final answer
    x = 28,447,690.80

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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.