Home / 919,934,977.40-1,379,902,466.10-828,101,972.60

Finding the Fourth Proportional to 919,934,977.40, 1,379,902,466.10 and 828,101,972.60

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Solution

The fourth proportional to 919,934,977.40, 1,379,902,466.10 and 828,101,972.60 is: 1,242,152,958.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,934,977.40 : 1,379,902,466.10 = 828,101,972.60 : x
  2. Step 2: Convert to fraction form
    919,934,977.40/1,379,902,466.10 = 828,101,972.60/x
  3. Step 3: Cross multiply
    919,934,977.40x = 1,379,902,466.10 × 828,101,972.60
  4. Step 4: Simplify right side
    919,934,977.40x = 1,142,699,954,173,014,528
  5. Step 5: Solve for x
    x = 1,142,699,954,173,014,528/919,934,977.40
  6. Step 6: Final answer
    x = 1,242,152,958.90

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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.