Home / 402,395,791,524.85-555,307,918,705.83-219,496,878,977.08

Finding the Fourth Proportional to 402,395,791,524.85, 555,307,918,705.83 and 219,496,878,977.08

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Solution

The fourth proportional to 402,395,791,524.85, 555,307,918,705.83 and 219,496,878,977.08 is: 302,906,634,697.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,395,791,524.85 : 555,307,918,705.83 = 219,496,878,977.08 : x
  2. Step 2: Convert to fraction form
    402,395,791,524.85/555,307,918,705.83 = 219,496,878,977.08/x
  3. Step 3: Cross multiply
    402,395,791,524.85x = 555,307,918,705.83 × 219,496,878,977.08
  4. Step 4: Simplify right side
    402,395,791,524.85x = 121,888,355,027,187,734,151,168
  5. Step 5: Solve for x
    x = 121,888,355,027,187,734,151,168/402,395,791,524.85
  6. Step 6: Final answer
    x = 302,906,634,697.40

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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.