Home / 490,867,500,780.48-677,864,989,782.72-464,125,346,970.24

Finding the Fourth Proportional to 490,867,500,780.48, 677,864,989,782.72 and 464,125,346,970.24

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Solution

The fourth proportional to 490,867,500,780.48, 677,864,989,782.72 and 464,125,346,970.24 is: 640,935,329,965.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,867,500,780.48 : 677,864,989,782.72 = 464,125,346,970.24 : x
  2. Step 2: Convert to fraction form
    490,867,500,780.48/677,864,989,782.72 = 464,125,346,970.24/x
  3. Step 3: Cross multiply
    490,867,500,780.48x = 677,864,989,782.72 × 464,125,346,970.24
  4. Step 4: Simplify right side
    490,867,500,780.48x = 314,614,323,581,883,099,643,904
  5. Step 5: Solve for x
    x = 314,614,323,581,883,099,643,904/490,867,500,780.48
  6. Step 6: Final answer
    x = 640,935,329,965.11

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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.