Home / 39,819,154,998.65-54,950,455,941.92-21,508,212,581.01

Finding the Fourth Proportional to 39,819,154,998.65, 54,950,455,941.92 and 21,508,212,581.01

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Solution

The fourth proportional to 39,819,154,998.65, 54,950,455,941.92 and 21,508,212,581.01 is: 29,681,345,268.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,819,154,998.65 : 54,950,455,941.92 = 21,508,212,581.01 : x
  2. Step 2: Convert to fraction form
    39,819,154,998.65/54,950,455,941.92 = 21,508,212,581.01/x
  3. Step 3: Cross multiply
    39,819,154,998.65x = 54,950,455,941.92 × 21,508,212,581.01
  4. Step 4: Simplify right side
    39,819,154,998.65x = 1,181,886,087,822,239,334,400
  5. Step 5: Solve for x
    x = 1,181,886,087,822,239,334,400/39,819,154,998.65
  6. Step 6: Final answer
    x = 29,681,345,268.69

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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.