Home / 478,220,803,110.26-659,947,692,847.05-261,447,464,729.78

Finding the Fourth Proportional to 478,220,803,110.26, 659,947,692,847.05 and 261,447,464,729.78

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Solution

The fourth proportional to 478,220,803,110.26, 659,947,692,847.05 and 261,447,464,729.78 is: 360,799,133,009.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,220,803,110.26 : 659,947,692,847.05 = 261,447,464,729.78 : x
  2. Step 2: Convert to fraction form
    478,220,803,110.26/659,947,692,847.05 = 261,447,464,729.78/x
  3. Step 3: Cross multiply
    478,220,803,110.26x = 659,947,692,847.05 × 261,447,464,729.78
  4. Step 4: Simplify right side
    478,220,803,110.26x = 172,541,651,149,128,804,073,472
  5. Step 5: Solve for x
    x = 172,541,651,149,128,804,073,472/478,220,803,110.26
  6. Step 6: Final answer
    x = 360,799,133,009.17

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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.