Home / 1,420,091,999.40-2,130,137,999.10-384,951,219.60

Finding the Fourth Proportional to 1,420,091,999.40, 2,130,137,999.10 and 384,951,219.60

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Solution

The fourth proportional to 1,420,091,999.40, 2,130,137,999.10 and 384,951,219.60 is: 577,426,829.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,091,999.40 : 2,130,137,999.10 = 384,951,219.60 : x
  2. Step 2: Convert to fraction form
    1,420,091,999.40/2,130,137,999.10 = 384,951,219.60/x
  3. Step 3: Cross multiply
    1,420,091,999.40x = 2,130,137,999.10 × 384,951,219.60
  4. Step 4: Simplify right side
    1,420,091,999.40x = 819,999,220,669,848,704
  5. Step 5: Solve for x
    x = 819,999,220,669,848,704/1,420,091,999.40
  6. Step 6: Final answer
    x = 577,426,829.40

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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.