Home / 425,458,900.83-638,254,335.47-179,816,569.86

Finding the Fourth Proportional to 425,458,900.83, 638,254,335.47 and 179,816,569.86

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Solution

The fourth proportional to 425,458,900.83, 638,254,335.47 and 179,816,569.86 is: 269,752,742.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,458,900.83 : 638,254,335.47 = 179,816,569.86 : x
  2. Step 2: Convert to fraction form
    425,458,900.83/638,254,335.47 = 179,816,569.86/x
  3. Step 3: Cross multiply
    425,458,900.83x = 638,254,335.47 × 179,816,569.86
  4. Step 4: Simplify right side
    425,458,900.83x = 114,768,705,302,489,152
  5. Step 5: Solve for x
    x = 114,768,705,302,489,152/425,458,900.83
  6. Step 6: Final answer
    x = 269,752,742.46

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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.