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Finding the Fourth Proportional to 380,459,641.76, 569,720,658.72 and 250,673,777.84

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Solution

The fourth proportional to 380,459,641.76, 569,720,658.72 and 250,673,777.84 is: 375,372,350.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,459,641.76 : 569,720,658.72 = 250,673,777.84 : x
  2. Step 2: Convert to fraction form
    380,459,641.76/569,720,658.72 = 250,673,777.84/x
  3. Step 3: Cross multiply
    380,459,641.76x = 569,720,658.72 × 250,673,777.84
  4. Step 4: Simplify right side
    380,459,641.76x = 142,814,029,834,835,744
  5. Step 5: Solve for x
    x = 142,814,029,834,835,744/380,459,641.76
  6. Step 6: Final answer
    x = 375,372,350.07

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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.