Home / 768,129,098.96-1,152,096,460.90-243,503,257.76

Finding the Fourth Proportional to 768,129,098.96, 1,152,096,460.90 and 243,503,257.76

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Solution

The fourth proportional to 768,129,098.96, 1,152,096,460.90 and 243,503,257.76 is: 365,224,077.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,129,098.96 : 1,152,096,460.90 = 243,503,257.76 : x
  2. Step 2: Convert to fraction form
    768,129,098.96/1,152,096,460.90 = 243,503,257.76/x
  3. Step 3: Cross multiply
    768,129,098.96x = 1,152,096,460.90 × 243,503,257.76
  4. Step 4: Simplify right side
    768,129,098.96x = 280,539,241,482,916,480
  5. Step 5: Solve for x
    x = 280,539,241,482,916,480/768,129,098.96
  6. Step 6: Final answer
    x = 365,224,077.39

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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.