Home / 557,390,077.64-769,154,734.50-309,856,358.60

Finding the Fourth Proportional to 557,390,077.64, 769,154,734.50 and 309,856,358.60

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Solution

The fourth proportional to 557,390,077.64, 769,154,734.50 and 309,856,358.60 is: 427,577,552.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,390,077.64 : 769,154,734.50 = 309,856,358.60 : x
  2. Step 2: Convert to fraction form
    557,390,077.64/769,154,734.50 = 309,856,358.60/x
  3. Step 3: Cross multiply
    557,390,077.64x = 769,154,734.50 × 309,856,358.60
  4. Step 4: Simplify right side
    557,390,077.64x = 238,327,485,232,119,808
  5. Step 5: Solve for x
    x = 238,327,485,232,119,808/557,390,077.64
  6. Step 6: Final answer
    x = 427,577,552.58

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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.