Home / 1,556,831,223.12-2,148,425,699.89-878,790,893.51

Finding the Fourth Proportional to 1,556,831,223.12, 2,148,425,699.89 and 878,790,893.51

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Solution

The fourth proportional to 1,556,831,223.12, 2,148,425,699.89 and 878,790,893.51 is: 1,212,730,649.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,831,223.12 : 2,148,425,699.89 = 878,790,893.51 : x
  2. Step 2: Convert to fraction form
    1,556,831,223.12/2,148,425,699.89 = 878,790,893.51/x
  3. Step 3: Cross multiply
    1,556,831,223.12x = 2,148,425,699.89 × 878,790,893.51
  4. Step 4: Simplify right side
    1,556,831,223.12x = 1,888,016,940,435,438,080
  5. Step 5: Solve for x
    x = 1,888,016,940,435,438,080/1,556,831,223.12
  6. Step 6: Final answer
    x = 1,212,730,649.54

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Double scale
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1.5x scale

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.