Home / 478,220,803,108.76-659,947,692,844.98-261,447,464,728.28

Finding the Fourth Proportional to 478,220,803,108.76, 659,947,692,844.98 and 261,447,464,728.28

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Solution

The fourth proportional to 478,220,803,108.76, 659,947,692,844.98 and 261,447,464,728.28 is: 360,799,133,007.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,220,803,108.76 : 659,947,692,844.98 = 261,447,464,728.28 : x
  2. Step 2: Convert to fraction form
    478,220,803,108.76/659,947,692,844.98 = 261,447,464,728.28/x
  3. Step 3: Cross multiply
    478,220,803,108.76x = 659,947,692,844.98 × 261,447,464,728.28
  4. Step 4: Simplify right side
    478,220,803,108.76x = 172,541,651,147,597,681,786,880
  5. Step 5: Solve for x
    x = 172,541,651,147,597,681,786,880/478,220,803,108.76
  6. Step 6: Final answer
    x = 360,799,133,007.10

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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.