Home / 1,038,318,648.35-1,432,879,804.63-568,419,969.32

Finding the Fourth Proportional to 1,038,318,648.35, 1,432,879,804.63 and 568,419,969.32

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Solution

The fourth proportional to 1,038,318,648.35, 1,432,879,804.63 and 568,419,969.32 is: 784,419,595.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,318,648.35 : 1,432,879,804.63 = 568,419,969.32 : x
  2. Step 2: Convert to fraction form
    1,038,318,648.35/1,432,879,804.63 = 568,419,969.32/x
  3. Step 3: Cross multiply
    1,038,318,648.35x = 1,432,879,804.63 × 568,419,969.32
  4. Step 4: Simplify right side
    1,038,318,648.35x = 814,477,494,585,908,864
  5. Step 5: Solve for x
    x = 814,477,494,585,908,864/1,038,318,648.35
  6. Step 6: Final answer
    x = 784,419,595.93

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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.