Home / 138,739,343.48-191,446,341.64-76,848,118.28

Finding the Fourth Proportional to 138,739,343.48, 191,446,341.64 and 76,848,118.28

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Solution

The fourth proportional to 138,739,343.48, 191,446,341.64 and 76,848,118.28 is: 106,042,674.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,739,343.48 : 191,446,341.64 = 76,848,118.28 : x
  2. Step 2: Convert to fraction form
    138,739,343.48/191,446,341.64 = 76,848,118.28/x
  3. Step 3: Cross multiply
    138,739,343.48x = 191,446,341.64 × 76,848,118.28
  4. Step 4: Simplify right side
    138,739,343.48x = 14,712,291,106,624,008
  5. Step 5: Solve for x
    x = 14,712,291,106,624,008/138,739,343.48
  6. Step 6: Final answer
    x = 106,042,674.97

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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.