Home / 740,923,717.55-1,111,487,777.17-430,177,678.43

Finding the Fourth Proportional to 740,923,717.55, 1,111,487,777.17 and 430,177,678.43

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Solution

The fourth proportional to 740,923,717.55, 1,111,487,777.17 and 430,177,678.43 is: 645,325,855.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,923,717.55 : 1,111,487,777.17 = 430,177,678.43 : x
  2. Step 2: Convert to fraction form
    740,923,717.55/1,111,487,777.17 = 430,177,678.43/x
  3. Step 3: Cross multiply
    740,923,717.55x = 1,111,487,777.17 × 430,177,678.43
  4. Step 4: Simplify right side
    740,923,717.55x = 478,137,231,579,678,912
  5. Step 5: Solve for x
    x = 478,137,231,579,678,912/740,923,717.55
  6. Step 6: Final answer
    x = 645,325,855.09

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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.