Home / 1,851,871,223.72-2,788,892,486.33-1,686,571,815.08

Finding the Fourth Proportional to 1,851,871,223.72, 2,788,892,486.33 and 1,686,571,815.08

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Solution

The fourth proportional to 1,851,871,223.72, 2,788,892,486.33 and 1,686,571,815.08 is: 2,539,953,859.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851,871,223.72 : 2,788,892,486.33 = 1,686,571,815.08 : x
  2. Step 2: Convert to fraction form
    1,851,871,223.72/2,788,892,486.33 = 1,686,571,815.08/x
  3. Step 3: Cross multiply
    1,851,871,223.72x = 2,788,892,486.33 × 1,686,571,815.08
  4. Step 4: Simplify right side
    1,851,871,223.72x = 4,703,667,462,732,561,408
  5. Step 5: Solve for x
    x = 4,703,667,462,732,561,408/1,851,871,223.72
  6. Step 6: Final answer
    x = 2,539,953,859.90

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.