Home / 1,328,575,820.10-1,992,863,730.15-961,243,800.90

Finding the Fourth Proportional to 1,328,575,820.10, 1,992,863,730.15 and 961,243,800.90

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Solution

The fourth proportional to 1,328,575,820.10, 1,992,863,730.15 and 961,243,800.90 is: 1,441,865,701.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,575,820.10 : 1,992,863,730.15 = 961,243,800.90 : x
  2. Step 2: Convert to fraction form
    1,328,575,820.10/1,992,863,730.15 = 961,243,800.90/x
  3. Step 3: Cross multiply
    1,328,575,820.10x = 1,992,863,730.15 × 961,243,800.90
  4. Step 4: Simplify right side
    1,328,575,820.10x = 1,915,627,906,645,137,920
  5. Step 5: Solve for x
    x = 1,915,627,906,645,137,920/1,328,575,820.10
  6. Step 6: Final answer
    x = 1,441,865,701.35

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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.