Home / 818,136,979.46-1,129,032,479.58-460,909,042.18

Finding the Fourth Proportional to 818,136,979.46, 1,129,032,479.58 and 460,909,042.18

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Solution

The fourth proportional to 818,136,979.46, 1,129,032,479.58 and 460,909,042.18 is: 636,056,420.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,136,979.46 : 1,129,032,479.58 = 460,909,042.18 : x
  2. Step 2: Convert to fraction form
    818,136,979.46/1,129,032,479.58 = 460,909,042.18/x
  3. Step 3: Cross multiply
    818,136,979.46x = 1,129,032,479.58 × 460,909,042.18
  4. Step 4: Simplify right side
    818,136,979.46x = 520,381,278,753,328,192
  5. Step 5: Solve for x
    x = 520,381,278,753,328,192/818,136,979.46
  6. Step 6: Final answer
    x = 636,056,420.65

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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.