Home / 501,980,275.98-692,749,603.42-278,971,356.98

Finding the Fourth Proportional to 501,980,275.98, 692,749,603.42 and 278,971,356.98

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Solution

The fourth proportional to 501,980,275.98, 692,749,603.42 and 278,971,356.98 is: 384,989,821.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,980,275.98 : 692,749,603.42 = 278,971,356.98 : x
  2. Step 2: Convert to fraction form
    501,980,275.98/692,749,603.42 = 278,971,356.98/x
  3. Step 3: Cross multiply
    501,980,275.98x = 692,749,603.42 × 278,971,356.98
  4. Step 4: Simplify right side
    501,980,275.98x = 193,257,296,913,434,240
  5. Step 5: Solve for x
    x = 193,257,296,913,434,240/501,980,275.98
  6. Step 6: Final answer
    x = 384,989,821.63

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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.