Home / 105,328,784.16-145,382,939.10-61,284,290.58

Finding the Fourth Proportional to 105,328,784.16, 145,382,939.10 and 61,284,290.58

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Solution

The fourth proportional to 105,328,784.16, 145,382,939.10 and 61,284,290.58 is: 84,589,320.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,328,784.16 : 145,382,939.10 = 61,284,290.58 : x
  2. Step 2: Convert to fraction form
    105,328,784.16/145,382,939.10 = 61,284,290.58/x
  3. Step 3: Cross multiply
    105,328,784.16x = 145,382,939.10 × 61,284,290.58
  4. Step 4: Simplify right side
    105,328,784.16x = 8,909,690,285,178,843
  5. Step 5: Solve for x
    x = 8,909,690,285,178,843/105,328,784.16
  6. Step 6: Final answer
    x = 84,589,320.54

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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.