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Finding the Fourth Proportional to 53,640,043.20, 80,460,064.80 and 19,562,500.80

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Solution

The fourth proportional to 53,640,043.20, 80,460,064.80 and 19,562,500.80 is: 29,343,751.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,640,043.20 : 80,460,064.80 = 19,562,500.80 : x
  2. Step 2: Convert to fraction form
    53,640,043.20/80,460,064.80 = 19,562,500.80/x
  3. Step 3: Cross multiply
    53,640,043.20x = 80,460,064.80 × 19,562,500.80
  4. Step 4: Simplify right side
    53,640,043.20x = 1,574,000,082,018,051.75
  5. Step 5: Solve for x
    x = 1,574,000,082,018,051.75/53,640,043.20
  6. Step 6: Final answer
    x = 29,343,751.20

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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.