Home / 990,429,053.50-1,365,351,570.39-692,145,231.58

Finding the Fourth Proportional to 990,429,053.50, 1,365,351,570.39 and 692,145,231.58

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Solution

The fourth proportional to 990,429,053.50, 1,365,351,570.39 and 692,145,231.58 is: 954,153,733.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,429,053.50 : 1,365,351,570.39 = 692,145,231.58 : x
  2. Step 2: Convert to fraction form
    990,429,053.50/1,365,351,570.39 = 692,145,231.58/x
  3. Step 3: Cross multiply
    990,429,053.50x = 1,365,351,570.39 × 692,145,231.58
  4. Step 4: Simplify right side
    990,429,053.50x = 945,021,578,875,703,296
  5. Step 5: Solve for x
    x = 945,021,578,875,703,296/990,429,053.50
  6. Step 6: Final answer
    x = 954,153,733.21

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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.