Home / 918,120,709.80-1,377,181,064.70-909,511,365.60

Finding the Fourth Proportional to 918,120,709.80, 1,377,181,064.70 and 909,511,365.60

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Solution

The fourth proportional to 918,120,709.80, 1,377,181,064.70 and 909,511,365.60 is: 1,364,267,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,120,709.80 : 1,377,181,064.70 = 909,511,365.60 : x
  2. Step 2: Convert to fraction form
    918,120,709.80/1,377,181,064.70 = 909,511,365.60/x
  3. Step 3: Cross multiply
    918,120,709.80x = 1,377,181,064.70 × 909,511,365.60
  4. Step 4: Simplify right side
    918,120,709.80x = 1,252,561,830,833,758,976
  5. Step 5: Solve for x
    x = 1,252,561,830,833,758,976/918,120,709.80
  6. Step 6: Final answer
    x = 1,364,267,048.40

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1.5x scale

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.