Home / 347,013,572.81-520,606,512.43-172,218,643.92

Finding the Fourth Proportional to 347,013,572.81, 520,606,512.43 and 172,218,643.92

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Solution

The fourth proportional to 347,013,572.81, 520,606,512.43 and 172,218,643.92 is: 258,370,722.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,013,572.81 : 520,606,512.43 = 172,218,643.92 : x
  2. Step 2: Convert to fraction form
    347,013,572.81/520,606,512.43 = 172,218,643.92/x
  3. Step 3: Cross multiply
    347,013,572.81x = 520,606,512.43 × 172,218,643.92
  4. Step 4: Simplify right side
    347,013,572.81x = 89,658,147,586,184,672
  5. Step 5: Solve for x
    x = 89,658,147,586,184,672/347,013,572.81
  6. Step 6: Final answer
    x = 258,370,722.68

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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.