Home / 1,405,884,909.83-1,940,121,133.58-779,351,750.15

Finding the Fourth Proportional to 1,405,884,909.83, 1,940,121,133.58 and 779,351,750.15

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Solution

The fourth proportional to 1,405,884,909.83, 1,940,121,133.58 and 779,351,750.15 is: 1,075,505,391.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,884,909.83 : 1,940,121,133.58 = 779,351,750.15 : x
  2. Step 2: Convert to fraction form
    1,405,884,909.83/1,940,121,133.58 = 779,351,750.15/x
  3. Step 3: Cross multiply
    1,405,884,909.83x = 1,940,121,133.58 × 779,351,750.15
  4. Step 4: Simplify right side
    1,405,884,909.83x = 1,512,036,800,954,678,272
  5. Step 5: Solve for x
    x = 1,512,036,800,954,678,272/1,405,884,909.83
  6. Step 6: Final answer
    x = 1,075,505,391.93

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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.