Home / 455,356,778.90-683,316,278.51-178,959,407.81

Finding the Fourth Proportional to 455,356,778.90, 683,316,278.51 and 178,959,407.81

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Solution

The fourth proportional to 455,356,778.90, 683,316,278.51 and 178,959,407.81 is: 268,549,590.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,356,778.90 : 683,316,278.51 = 178,959,407.81 : x
  2. Step 2: Convert to fraction form
    455,356,778.90/683,316,278.51 = 178,959,407.81/x
  3. Step 3: Cross multiply
    455,356,778.90x = 683,316,278.51 × 178,959,407.81
  4. Step 4: Simplify right side
    455,356,778.90x = 122,285,876,544,771,248
  5. Step 5: Solve for x
    x = 122,285,876,544,771,248/455,356,778.90
  6. Step 6: Final answer
    x = 268,549,590.59

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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.