Home / 20,589,142,035.78-28,410,742,537.47-11,554,828,021.26

Finding the Fourth Proportional to 20,589,142,035.78, 28,410,742,537.47 and 11,554,828,021.26

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Solution

The fourth proportional to 20,589,142,035.78, 28,410,742,537.47 and 11,554,828,021.26 is: 15,944,386,774.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589,142,035.78 : 28,410,742,537.47 = 11,554,828,021.26 : x
  2. Step 2: Convert to fraction form
    20,589,142,035.78/28,410,742,537.47 = 11,554,828,021.26/x
  3. Step 3: Cross multiply
    20,589,142,035.78x = 28,410,742,537.47 × 11,554,828,021.26
  4. Step 4: Simplify right side
    20,589,142,035.78x = 328,281,243,976,761,802,752
  5. Step 5: Solve for x
    x = 328,281,243,976,761,802,752/20,589,142,035.78
  6. Step 6: Final answer
    x = 15,944,386,774.65

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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.