Home / 1,490,398,398.42-2,056,689,908.73-812,200,947.93

Finding the Fourth Proportional to 1,490,398,398.42, 2,056,689,908.73 and 812,200,947.93

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Solution

The fourth proportional to 1,490,398,398.42, 2,056,689,908.73 and 812,200,947.93 is: 1,120,804,675.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,398,398.42 : 2,056,689,908.73 = 812,200,947.93 : x
  2. Step 2: Convert to fraction form
    1,490,398,398.42/2,056,689,908.73 = 812,200,947.93/x
  3. Step 3: Cross multiply
    1,490,398,398.42x = 2,056,689,908.73 × 812,200,947.93
  4. Step 4: Simplify right side
    1,490,398,398.42x = 1,670,445,493,468,571,136
  5. Step 5: Solve for x
    x = 1,670,445,493,468,571,136/1,490,398,398.42
  6. Step 6: Final answer
    x = 1,120,804,675.61

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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.