Home / 18,915,398,199,538-28,370,230,501,786-5,148,057,742,979.60

Finding the Fourth Proportional to 18,915,398,199,538, 28,370,230,501,786 and 5,148,057,742,979.60

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Solution

The fourth proportional to 18,915,398,199,538, 28,370,230,501,786 and 5,148,057,742,979.60 is: 7,721,306,380,343.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,915,398,199,538 : 28,370,230,501,786 = 5,148,057,742,979.60 : x
  2. Step 2: Convert to fraction form
    18,915,398,199,538/28,370,230,501,786 = 5,148,057,742,979.60/x
  3. Step 3: Cross multiply
    18,915,398,199,538x = 28,370,230,501,786 × 5,148,057,742,979.60
  4. Step 4: Simplify right side
    18,915,398,199,538x = 146,051,584,804,835,420,406,808,576
  5. Step 5: Solve for x
    x = 146,051,584,804,835,420,406,808,576/18,915,398,199,538
  6. Step 6: Final answer
    x = 7,721,306,380,343.75

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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.