Home / 1,512,779,694.12-2,087,638,763.59-843,767,860.72

Finding the Fourth Proportional to 1,512,779,694.12, 2,087,638,763.59 and 843,767,860.72

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Solution

The fourth proportional to 1,512,779,694.12, 2,087,638,763.59 and 843,767,860.72 is: 1,164,401,201.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,779,694.12 : 2,087,638,763.59 = 843,767,860.72 : x
  2. Step 2: Convert to fraction form
    1,512,779,694.12/2,087,638,763.59 = 843,767,860.72/x
  3. Step 3: Cross multiply
    1,512,779,694.12x = 2,087,638,763.59 × 843,767,860.72
  4. Step 4: Simplify right side
    1,512,779,694.12x = 1,761,482,493,510,480,128
  5. Step 5: Solve for x
    x = 1,761,482,493,510,480,128/1,512,779,694.12
  6. Step 6: Final answer
    x = 1,164,401,201.55

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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.