Home / 780,032,490.40-1,170,048,735.60-262,290,858.40

Finding the Fourth Proportional to 780,032,490.40, 1,170,048,735.60 and 262,290,858.40

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Solution

The fourth proportional to 780,032,490.40, 1,170,048,735.60 and 262,290,858.40 is: 393,436,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,032,490.40 : 1,170,048,735.60 = 262,290,858.40 : x
  2. Step 2: Convert to fraction form
    780,032,490.40/1,170,048,735.60 = 262,290,858.40/x
  3. Step 3: Cross multiply
    780,032,490.40x = 1,170,048,735.60 × 262,290,858.40
  4. Step 4: Simplify right side
    780,032,490.40x = 306,893,087,230,358,592
  5. Step 5: Solve for x
    x = 306,893,087,230,358,592/780,032,490.40
  6. Step 6: Final answer
    x = 393,436,287.60

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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.