Home / 748,052,445.60-1,122,078,668.40-339,905,757.60

Finding the Fourth Proportional to 748,052,445.60, 1,122,078,668.40 and 339,905,757.60

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Solution

The fourth proportional to 748,052,445.60, 1,122,078,668.40 and 339,905,757.60 is: 509,858,636.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,052,445.60 : 1,122,078,668.40 = 339,905,757.60 : x
  2. Step 2: Convert to fraction form
    748,052,445.60/1,122,078,668.40 = 339,905,757.60/x
  3. Step 3: Cross multiply
    748,052,445.60x = 1,122,078,668.40 × 339,905,757.60
  4. Step 4: Simplify right side
    748,052,445.60x = 381,400,999,869,301,248
  5. Step 5: Solve for x
    x = 381,400,999,869,301,248/748,052,445.60
  6. Step 6: Final answer
    x = 509,858,636.40

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Double scale
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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.