Home / 8,990,578,293.70-12,406,149,347.63-5,372,881,796.93

Finding the Fourth Proportional to 8,990,578,293.70, 12,406,149,347.63 and 5,372,881,796.93

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Solution

The fourth proportional to 8,990,578,293.70, 12,406,149,347.63 and 5,372,881,796.93 is: 7,414,069,687.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990,578,293.70 : 12,406,149,347.63 = 5,372,881,796.93 : x
  2. Step 2: Convert to fraction form
    8,990,578,293.70/12,406,149,347.63 = 5,372,881,796.93/x
  3. Step 3: Cross multiply
    8,990,578,293.70x = 12,406,149,347.63 × 5,372,881,796.93
  4. Step 4: Simplify right side
    8,990,578,293.70x = 66,656,773,999,789,809,664
  5. Step 5: Solve for x
    x = 66,656,773,999,789,809,664/8,990,578,293.70
  6. Step 6: Final answer
    x = 7,414,069,687.43

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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.