Home / 1,109,556,150.84-1,531,183,666.08-639,655,231.32

Finding the Fourth Proportional to 1,109,556,150.84, 1,531,183,666.08 and 639,655,231.32

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Solution

The fourth proportional to 1,109,556,150.84, 1,531,183,666.08 and 639,655,231.32 is: 882,722,015.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,556,150.84 : 1,531,183,666.08 = 639,655,231.32 : x
  2. Step 2: Convert to fraction form
    1,109,556,150.84/1,531,183,666.08 = 639,655,231.32/x
  3. Step 3: Cross multiply
    1,109,556,150.84x = 1,531,183,666.08 × 639,655,231.32
  4. Step 4: Simplify right side
    1,109,556,150.84x = 979,429,642,119,808,128
  5. Step 5: Solve for x
    x = 979,429,642,119,808,128/1,109,556,150.84
  6. Step 6: Final answer
    x = 882,722,015.81

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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.