Home / 39,819,154,998.15-54,950,455,941.23-21,508,212,580.51

Finding the Fourth Proportional to 39,819,154,998.15, 54,950,455,941.23 and 21,508,212,580.51

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Solution

The fourth proportional to 39,819,154,998.15, 54,950,455,941.23 and 21,508,212,580.51 is: 29,681,345,267.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,819,154,998.15 : 54,950,455,941.23 = 21,508,212,580.51 : x
  2. Step 2: Convert to fraction form
    39,819,154,998.15/54,950,455,941.23 = 21,508,212,580.51/x
  3. Step 3: Cross multiply
    39,819,154,998.15x = 54,950,455,941.23 × 21,508,212,580.51
  4. Step 4: Simplify right side
    39,819,154,998.15x = 1,181,886,087,779,649,060,864
  5. Step 5: Solve for x
    x = 1,181,886,087,779,649,060,864/39,819,154,998.15
  6. Step 6: Final answer
    x = 29,681,345,267.99

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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.