Home / 478,220,803,109.76-659,947,692,846.36-261,447,464,729.28

Finding the Fourth Proportional to 478,220,803,109.76, 659,947,692,846.36 and 261,447,464,729.28

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Solution

The fourth proportional to 478,220,803,109.76, 659,947,692,846.36 and 261,447,464,729.28 is: 360,799,133,008.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,220,803,109.76 : 659,947,692,846.36 = 261,447,464,729.28 : x
  2. Step 2: Convert to fraction form
    478,220,803,109.76/659,947,692,846.36 = 261,447,464,729.28/x
  3. Step 3: Cross multiply
    478,220,803,109.76x = 659,947,692,846.36 × 261,447,464,729.28
  4. Step 4: Simplify right side
    478,220,803,109.76x = 172,541,651,148,618,407,608,320
  5. Step 5: Solve for x
    x = 172,541,651,148,618,407,608,320/478,220,803,109.76
  6. Step 6: Final answer
    x = 360,799,133,008.48

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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.