Home / 689,496,655.80-1,034,244,983.70-603,403,213.80

Finding the Fourth Proportional to 689,496,655.80, 1,034,244,983.70 and 603,403,213.80

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Solution

The fourth proportional to 689,496,655.80, 1,034,244,983.70 and 603,403,213.80 is: 905,104,820.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,496,655.80 : 1,034,244,983.70 = 603,403,213.80 : x
  2. Step 2: Convert to fraction form
    689,496,655.80/1,034,244,983.70 = 603,403,213.80/x
  3. Step 3: Cross multiply
    689,496,655.80x = 1,034,244,983.70 × 603,403,213.80
  4. Step 4: Simplify right side
    689,496,655.80x = 624,066,747,021,108,608
  5. Step 5: Solve for x
    x = 624,066,747,021,108,608/689,496,655.80
  6. Step 6: Final answer
    x = 905,104,820.70

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1.5x scale

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.