Home / 501,980,328.42-692,749,675.79-278,971,409.44

Finding the Fourth Proportional to 501,980,328.42, 692,749,675.79 and 278,971,409.44

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Solution

The fourth proportional to 501,980,328.42, 692,749,675.79 and 278,971,409.44 is: 384,989,894.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,980,328.42 : 692,749,675.79 = 278,971,409.44 : x
  2. Step 2: Convert to fraction form
    501,980,328.42/692,749,675.79 = 278,971,409.44/x
  3. Step 3: Cross multiply
    501,980,328.42x = 692,749,675.79 × 278,971,409.44
  4. Step 4: Simplify right side
    501,980,328.42x = 193,257,353,444,239,328
  5. Step 5: Solve for x
    x = 193,257,353,444,239,328/501,980,328.42
  6. Step 6: Final answer
    x = 384,989,894.03

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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.