Home / 501,980,325.42-692,749,671.65-278,971,406.44

Finding the Fourth Proportional to 501,980,325.42, 692,749,671.65 and 278,971,406.44

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Solution

The fourth proportional to 501,980,325.42, 692,749,671.65 and 278,971,406.44 is: 384,989,889.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,980,325.42 : 692,749,671.65 = 278,971,406.44 : x
  2. Step 2: Convert to fraction form
    501,980,325.42/692,749,671.65 = 278,971,406.44/x
  3. Step 3: Cross multiply
    501,980,325.42x = 692,749,671.65 × 278,971,406.44
  4. Step 4: Simplify right side
    501,980,325.42x = 193,257,350,211,048,672
  5. Step 5: Solve for x
    x = 193,257,350,211,048,672/501,980,325.42
  6. Step 6: Final answer
    x = 384,989,889.89

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Why These Related Problems?

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