Home / 555,255,015.21-765,805,130.82-488,130,455.52

Finding the Fourth Proportional to 555,255,015.21, 765,805,130.82 and 488,130,455.52

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Solution

The fourth proportional to 555,255,015.21, 765,805,130.82 and 488,130,455.52 is: 673,227,250.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,255,015.21 : 765,805,130.82 = 488,130,455.52 : x
  2. Step 2: Convert to fraction form
    555,255,015.21/765,805,130.82 = 488,130,455.52/x
  3. Step 3: Cross multiply
    555,255,015.21x = 765,805,130.82 × 488,130,455.52
  4. Step 4: Simplify right side
    555,255,015.21x = 373,812,807,346,719,808
  5. Step 5: Solve for x
    x = 373,812,807,346,719,808/555,255,015.21
  6. Step 6: Final answer
    x = 673,227,250.74

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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.