Home / 190,557,658.28-285,850,149.49-79,781,854.16

Finding the Fourth Proportional to 190,557,658.28, 285,850,149.49 and 79,781,854.16

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Solution

The fourth proportional to 190,557,658.28, 285,850,149.49 and 79,781,854.16 is: 119,678,501.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,557,658.28 : 285,850,149.49 = 79,781,854.16 : x
  2. Step 2: Convert to fraction form
    190,557,658.28/285,850,149.49 = 79,781,854.16/x
  3. Step 3: Cross multiply
    190,557,658.28x = 285,850,149.49 × 79,781,854.16
  4. Step 4: Simplify right side
    190,557,658.28x = 22,805,654,939,038,932
  5. Step 5: Solve for x
    x = 22,805,654,939,038,932/190,557,658.28
  6. Step 6: Final answer
    x = 119,678,501.22

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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.