Home / 131,162,492.87-180,938,863.06-78,201,849.36

Finding the Fourth Proportional to 131,162,492.87, 180,938,863.06 and 78,201,849.36

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Solution

The fourth proportional to 131,162,492.87, 180,938,863.06 and 78,201,849.36 is: 107,879,572.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,162,492.87 : 180,938,863.06 = 78,201,849.36 : x
  2. Step 2: Convert to fraction form
    131,162,492.87/180,938,863.06 = 78,201,849.36/x
  3. Step 3: Cross multiply
    131,162,492.87x = 180,938,863.06 × 78,201,849.36
  4. Step 4: Simplify right side
    131,162,492.87x = 14,149,753,712,870,804
  5. Step 5: Solve for x
    x = 14,149,753,712,870,804/131,162,492.87
  6. Step 6: Final answer
    x = 107,879,572.91

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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.