Home / 408,943,877,112.80-613,415,815,669.20-389,417,884,467.20

Finding the Fourth Proportional to 408,943,877,112.80, 613,415,815,669.20 and 389,417,884,467.20

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Solution

The fourth proportional to 408,943,877,112.80, 613,415,815,669.20 and 389,417,884,467.20 is: 584,126,826,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,943,877,112.80 : 613,415,815,669.20 = 389,417,884,467.20 : x
  2. Step 2: Convert to fraction form
    408,943,877,112.80/613,415,815,669.20 = 389,417,884,467.20/x
  3. Step 3: Cross multiply
    408,943,877,112.80x = 613,415,815,669.20 × 389,417,884,467.20
  4. Step 4: Simplify right side
    408,943,877,112.80x = 238,875,089,236,621,751,484,416
  5. Step 5: Solve for x
    x = 238,875,089,236,621,751,484,416/408,943,877,112.80
  6. Step 6: Final answer
    x = 584,126,826,700.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.