Home / 15,243,653,709.03-21,036,809,840.48-9,140,999,839.62

Finding the Fourth Proportional to 15,243,653,709.03, 21,036,809,840.48 and 9,140,999,839.62

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Solution

The fourth proportional to 15,243,653,709.03, 21,036,809,840.48 and 9,140,999,839.62 is: 12,614,920,218.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,243,653,709.03 : 21,036,809,840.48 = 9,140,999,839.62 : x
  2. Step 2: Convert to fraction form
    15,243,653,709.03/21,036,809,840.48 = 9,140,999,839.62/x
  3. Step 3: Cross multiply
    15,243,653,709.03x = 21,036,809,840.48 × 9,140,999,839.62
  4. Step 4: Simplify right side
    15,243,653,709.03x = 192,297,475,377,944,133,632
  5. Step 5: Solve for x
    x = 192,297,475,377,944,133,632/15,243,653,709.03
  6. Step 6: Final answer
    x = 12,614,920,218.51

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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.