Home / 347,686,278.80-521,529,418.20-291,566,109.20

Finding the Fourth Proportional to 347,686,278.80, 521,529,418.20 and 291,566,109.20

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Solution

The fourth proportional to 347,686,278.80, 521,529,418.20 and 291,566,109.20 is: 437,349,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,686,278.80 : 521,529,418.20 = 291,566,109.20 : x
  2. Step 2: Convert to fraction form
    347,686,278.80/521,529,418.20 = 291,566,109.20/x
  3. Step 3: Cross multiply
    347,686,278.80x = 521,529,418.20 × 291,566,109.20
  4. Step 4: Simplify right side
    347,686,278.80x = 152,060,303,297,913,664
  5. Step 5: Solve for x
    x = 152,060,303,297,913,664/347,686,278.80
  6. Step 6: Final answer
    x = 437,349,163.80

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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.