Home / 15,243,653,709.53-21,036,809,841.17-9,140,999,840.12

Finding the Fourth Proportional to 15,243,653,709.53, 21,036,809,841.17 and 9,140,999,840.12

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Solution

The fourth proportional to 15,243,653,709.53, 21,036,809,841.17 and 9,140,999,840.12 is: 12,614,920,219.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,243,653,709.53 : 21,036,809,841.17 = 9,140,999,840.12 : x
  2. Step 2: Convert to fraction form
    15,243,653,709.53/21,036,809,841.17 = 9,140,999,840.12/x
  3. Step 3: Cross multiply
    15,243,653,709.53x = 21,036,809,841.17 × 9,140,999,840.12
  4. Step 4: Simplify right side
    15,243,653,709.53x = 192,297,475,394,618,916,864
  5. Step 5: Solve for x
    x = 192,297,475,394,618,916,864/15,243,653,709.53
  6. Step 6: Final answer
    x = 12,614,920,219.19

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1.5x scale

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.