Home / 1,280,942,297.10-1,921,403,997.81-360,798,263.82

Finding the Fourth Proportional to 1,280,942,297.10, 1,921,403,997.81 and 360,798,263.82

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Solution

The fourth proportional to 1,280,942,297.10, 1,921,403,997.81 and 360,798,263.82 is: 541,194,734.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,942,297.10 : 1,921,403,997.81 = 360,798,263.82 : x
  2. Step 2: Convert to fraction form
    1,280,942,297.10/1,921,403,997.81 = 360,798,263.82/x
  3. Step 3: Cross multiply
    1,280,942,297.10x = 1,921,403,997.81 × 360,798,263.82
  4. Step 4: Simplify right side
    1,280,942,297.10x = 693,239,226,506,655,104
  5. Step 5: Solve for x
    x = 693,239,226,506,655,104/1,280,942,297.10
  6. Step 6: Final answer
    x = 541,194,734.59

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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.