Home / 665,747,957.86-918,801,335.61-383,500,153.06

Finding the Fourth Proportional to 665,747,957.86, 918,801,335.61 and 383,500,153.06

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Solution

The fourth proportional to 665,747,957.86, 918,801,335.61 and 383,500,153.06 is: 529,270,046.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,747,957.86 : 918,801,335.61 = 383,500,153.06 : x
  2. Step 2: Convert to fraction form
    665,747,957.86/918,801,335.61 = 383,500,153.06/x
  3. Step 3: Cross multiply
    665,747,957.86x = 918,801,335.61 × 383,500,153.06
  4. Step 4: Simplify right side
    665,747,957.86x = 352,360,452,838,167,424
  5. Step 5: Solve for x
    x = 352,360,452,838,167,424/665,747,957.86
  6. Step 6: Final answer
    x = 529,270,046.84

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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.