Home / 1,261,371,899.20-1,892,057,848.80-831,036,308.80

Finding the Fourth Proportional to 1,261,371,899.20, 1,892,057,848.80 and 831,036,308.80

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Solution

The fourth proportional to 1,261,371,899.20, 1,892,057,848.80 and 831,036,308.80 is: 1,246,554,463.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,371,899.20 : 1,892,057,848.80 = 831,036,308.80 : x
  2. Step 2: Convert to fraction form
    1,261,371,899.20/1,892,057,848.80 = 831,036,308.80/x
  3. Step 3: Cross multiply
    1,261,371,899.20x = 1,892,057,848.80 × 831,036,308.80
  4. Step 4: Simplify right side
    1,261,371,899.20x = 1,572,368,770,702,820,352
  5. Step 5: Solve for x
    x = 1,572,368,770,702,820,352/1,261,371,899.20
  6. Step 6: Final answer
    x = 1,246,554,463.20

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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.