Home / 289,426,103.86-399,407,153.75-157,267,503.61

Finding the Fourth Proportional to 289,426,103.86, 399,407,153.75 and 157,267,503.61

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Solution

The fourth proportional to 289,426,103.86, 399,407,153.75 and 157,267,503.61 is: 217,028,682.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,426,103.86 : 399,407,153.75 = 157,267,503.61 : x
  2. Step 2: Convert to fraction form
    289,426,103.86/399,407,153.75 = 157,267,503.61/x
  3. Step 3: Cross multiply
    289,426,103.86x = 399,407,153.75 × 157,267,503.61
  4. Step 4: Simplify right side
    289,426,103.86x = 62,813,765,994,237,952
  5. Step 5: Solve for x
    x = 62,813,765,994,237,952/289,426,103.86
  6. Step 6: Final answer
    x = 217,028,682.47

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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.