Home / 499,374,586.68-689,135,931.18-279,358,012.68

Finding the Fourth Proportional to 499,374,586.68, 689,135,931.18 and 279,358,012.68

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Solution

The fourth proportional to 499,374,586.68, 689,135,931.18 and 279,358,012.68 is: 385,513,498.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,374,586.68 : 689,135,931.18 = 279,358,012.68 : x
  2. Step 2: Convert to fraction form
    499,374,586.68/689,135,931.18 = 279,358,012.68/x
  3. Step 3: Cross multiply
    499,374,586.68x = 689,135,931.18 × 279,358,012.68
  4. Step 4: Simplify right side
    499,374,586.68x = 192,515,644,200,826,048
  5. Step 5: Solve for x
    x = 192,515,644,200,826,048/499,374,586.68
  6. Step 6: Final answer
    x = 385,513,498.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.