Home / 987,118,792.61-1,361,429,638.65-867,786,234.17

Finding the Fourth Proportional to 987,118,792.61, 1,361,429,638.65 and 867,786,234.17

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Solution

The fourth proportional to 987,118,792.61, 1,361,429,638.65 and 867,786,234.17 is: 1,196,846,730.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,118,792.61 : 1,361,429,638.65 = 867,786,234.17 : x
  2. Step 2: Convert to fraction form
    987,118,792.61/1,361,429,638.65 = 867,786,234.17/x
  3. Step 3: Cross multiply
    987,118,792.61x = 1,361,429,638.65 × 867,786,234.17
  4. Step 4: Simplify right side
    987,118,792.61x = 1,181,429,899,204,700,160
  5. Step 5: Solve for x
    x = 1,181,429,899,204,700,160/987,118,792.61
  6. Step 6: Final answer
    x = 1,196,846,730.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.