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Finding the Fourth Proportional to 425,865,342.60, 638,798,013.90 and 183,528,246.60

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Solution

The fourth proportional to 425,865,342.60, 638,798,013.90 and 183,528,246.60 is: 275,292,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,865,342.60 : 638,798,013.90 = 183,528,246.60 : x
  2. Step 2: Convert to fraction form
    425,865,342.60/638,798,013.90 = 183,528,246.60/x
  3. Step 3: Cross multiply
    425,865,342.60x = 638,798,013.90 × 183,528,246.60
  4. Step 4: Simplify right side
    425,865,342.60x = 117,237,479,422,629,424
  5. Step 5: Solve for x
    x = 117,237,479,422,629,424/425,865,342.60
  6. Step 6: Final answer
    x = 275,292,369.90

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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.