Home / 493,522,848.14-681,134,627.56-312,486,656.60

Finding the Fourth Proportional to 493,522,848.14, 681,134,627.56 and 312,486,656.60

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Solution

The fourth proportional to 493,522,848.14, 681,134,627.56 and 312,486,656.60 is: 431,277,869.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,522,848.14 : 681,134,627.56 = 312,486,656.60 : x
  2. Step 2: Convert to fraction form
    493,522,848.14/681,134,627.56 = 312,486,656.60/x
  3. Step 3: Cross multiply
    493,522,848.14x = 681,134,627.56 × 312,486,656.60
  4. Step 4: Simplify right side
    493,522,848.14x = 212,845,482,462,804,064
  5. Step 5: Solve for x
    x = 212,845,482,462,804,064/493,522,848.14
  6. Step 6: Final answer
    x = 431,277,869.44

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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.