Home / 21,318,116,348.17-31,926,411,766.73-12,335,374,816.91

Finding the Fourth Proportional to 21,318,116,348.17, 31,926,411,766.73 and 12,335,374,816.91

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Solution

The fourth proportional to 21,318,116,348.17, 31,926,411,766.73 and 12,335,374,816.91 is: 18,473,689,197.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,318,116,348.17 : 31,926,411,766.73 = 12,335,374,816.91 : x
  2. Step 2: Convert to fraction form
    21,318,116,348.17/31,926,411,766.73 = 12,335,374,816.91/x
  3. Step 3: Cross multiply
    21,318,116,348.17x = 31,926,411,766.73 × 12,335,374,816.91
  4. Step 4: Simplify right side
    21,318,116,348.17x = 393,824,255,701,485,355,008
  5. Step 5: Solve for x
    x = 393,824,255,701,485,355,008/21,318,116,348.17
  6. Step 6: Final answer
    x = 18,473,689,197.93

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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.