Home / 309,230,280.86-426,738,060.52-170,003,411.42

Finding the Fourth Proportional to 309,230,280.86, 426,738,060.52 and 170,003,411.42

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Solution

The fourth proportional to 309,230,280.86, 426,738,060.52 and 170,003,411.42 is: 234,604,857.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,230,280.86 : 426,738,060.52 = 170,003,411.42 : x
  2. Step 2: Convert to fraction form
    309,230,280.86/426,738,060.52 = 170,003,411.42/x
  3. Step 3: Cross multiply
    309,230,280.86x = 426,738,060.52 × 170,003,411.42
  4. Step 4: Simplify right side
    309,230,280.86x = 72,546,926,068,595,712
  5. Step 5: Solve for x
    x = 72,546,926,068,595,712/309,230,280.86
  6. Step 6: Final answer
    x = 234,604,857.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.