Home / 501,980,258.43-692,749,577.79-278,971,337.88

Finding the Fourth Proportional to 501,980,258.43, 692,749,577.79 and 278,971,337.88

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Solution

The fourth proportional to 501,980,258.43, 692,749,577.79 and 278,971,337.88 is: 384,989,794.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,980,258.43 : 692,749,577.79 = 278,971,337.88 : x
  2. Step 2: Convert to fraction form
    501,980,258.43/692,749,577.79 = 278,971,337.88/x
  3. Step 3: Cross multiply
    501,980,258.43x = 692,749,577.79 × 278,971,337.88
  4. Step 4: Simplify right side
    501,980,258.43x = 193,257,276,531,881,408
  5. Step 5: Solve for x
    x = 193,257,276,531,881,408/501,980,258.43
  6. Step 6: Final answer
    x = 384,989,794.49

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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.