Home / 879,539,658.80-1,319,458,787.40-266,119,012.40

Finding the Fourth Proportional to 879,539,658.80, 1,319,458,787.40 and 266,119,012.40

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Solution

The fourth proportional to 879,539,658.80, 1,319,458,787.40 and 266,119,012.40 is: 399,223,691.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,539,658.80 : 1,319,458,787.40 = 266,119,012.40 : x
  2. Step 2: Convert to fraction form
    879,539,658.80/1,319,458,787.40 = 266,119,012.40/x
  3. Step 3: Cross multiply
    879,539,658.80x = 1,319,458,787.40 × 266,119,012.40
  4. Step 4: Simplify right side
    879,539,658.80x = 351,133,069,405,389,568
  5. Step 5: Solve for x
    x = 351,133,069,405,389,568/879,539,658.80
  6. Step 6: Final answer
    x = 399,223,691.50

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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.