Home / 21,318,116,349.33-31,926,411,768.48-12,335,374,818.07

Finding the Fourth Proportional to 21,318,116,349.33, 31,926,411,768.48 and 12,335,374,818.07

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Solution

The fourth proportional to 21,318,116,349.33, 31,926,411,768.48 and 12,335,374,818.07 is: 18,473,689,199.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,318,116,349.33 : 31,926,411,768.48 = 12,335,374,818.07 : x
  2. Step 2: Convert to fraction form
    21,318,116,349.33/31,926,411,768.48 = 12,335,374,818.07/x
  3. Step 3: Cross multiply
    21,318,116,349.33x = 31,926,411,768.48 × 12,335,374,818.07
  4. Step 4: Simplify right side
    21,318,116,349.33x = 393,824,255,760,052,453,376
  5. Step 5: Solve for x
    x = 393,824,255,760,052,453,376/21,318,116,349.33
  6. Step 6: Final answer
    x = 18,473,689,199.68

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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.