Home / 1,211,560,742.17-1,817,529,013.59-512,055,823.15

Finding the Fourth Proportional to 1,211,560,742.17, 1,817,529,013.59 and 512,055,823.15

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Solution

The fourth proportional to 1,211,560,742.17, 1,817,529,013.59 and 512,055,823.15 is: 768,163,149.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,560,742.17 : 1,817,529,013.59 = 512,055,823.15 : x
  2. Step 2: Convert to fraction form
    1,211,560,742.17/1,817,529,013.59 = 512,055,823.15/x
  3. Step 3: Cross multiply
    1,211,560,742.17x = 1,817,529,013.59 × 512,055,823.15
  4. Step 4: Simplify right side
    1,211,560,742.17x = 930,676,315,152,834,944
  5. Step 5: Solve for x
    x = 930,676,315,152,834,944/1,211,560,742.17
  6. Step 6: Final answer
    x = 768,163,149.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.