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Finding the Fourth Proportional to 425,458,894.95, 638,254,326.65 and 179,816,563.98

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Solution

The fourth proportional to 425,458,894.95, 638,254,326.65 and 179,816,563.98 is: 269,752,733.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,458,894.95 : 638,254,326.65 = 179,816,563.98 : x
  2. Step 2: Convert to fraction form
    425,458,894.95/638,254,326.65 = 179,816,563.98/x
  3. Step 3: Cross multiply
    425,458,894.95x = 638,254,326.65 × 179,816,563.98
  4. Step 4: Simplify right side
    425,458,894.95x = 114,768,699,962,672,448
  5. Step 5: Solve for x
    x = 114,768,699,962,672,448/425,458,894.95
  6. Step 6: Final answer
    x = 269,752,733.64

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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.