Home / 1,328,575,809.60-1,992,863,714.40-961,243,790.40

Finding the Fourth Proportional to 1,328,575,809.60, 1,992,863,714.40 and 961,243,790.40

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Solution

The fourth proportional to 1,328,575,809.60, 1,992,863,714.40 and 961,243,790.40 is: 1,441,865,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,575,809.60 : 1,992,863,714.40 = 961,243,790.40 : x
  2. Step 2: Convert to fraction form
    1,328,575,809.60/1,992,863,714.40 = 961,243,790.40/x
  3. Step 3: Cross multiply
    1,328,575,809.60x = 1,992,863,714.40 × 961,243,790.40
  4. Step 4: Simplify right side
    1,328,575,809.60x = 1,915,627,870,580,479,232
  5. Step 5: Solve for x
    x = 1,915,627,870,580,479,232/1,328,575,809.60
  6. Step 6: Final answer
    x = 1,441,865,685.60

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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.