Home / 85,988,699,651.79-118,664,956,356.39-47,929,319,929.53

Finding the Fourth Proportional to 85,988,699,651.79, 118,664,956,356.39 and 47,929,319,929.53

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Solution

The fourth proportional to 85,988,699,651.79, 118,664,956,356.39 and 47,929,319,929.53 is: 66,142,768,534.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,988,699,651.79 : 118,664,956,356.39 = 47,929,319,929.53 : x
  2. Step 2: Convert to fraction form
    85,988,699,651.79/118,664,956,356.39 = 47,929,319,929.53/x
  3. Step 3: Cross multiply
    85,988,699,651.79x = 118,664,956,356.39 × 47,929,319,929.53
  4. Step 4: Simplify right side
    85,988,699,651.79x = 5,687,530,657,629,130,981,376
  5. Step 5: Solve for x
    x = 5,687,530,657,629,130,981,376/85,988,699,651.79
  6. Step 6: Final answer
    x = 66,142,768,534.25

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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.