Home / 81,386,334-112,285,363.32-50,435,210.16

Finding the Fourth Proportional to 81,386,334, 112,285,363.32 and 50,435,210.16

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Solution

The fourth proportional to 81,386,334, 112,285,363.32 and 50,435,210.16 is: 69,583,376.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,386,334 : 112,285,363.32 = 50,435,210.16 : x
  2. Step 2: Convert to fraction form
    81,386,334/112,285,363.32 = 50,435,210.16/x
  3. Step 3: Cross multiply
    81,386,334x = 112,285,363.32 × 50,435,210.16
  4. Step 4: Simplify right side
    81,386,334x = 5,663,135,896,936,155
  5. Step 5: Solve for x
    x = 5,663,135,896,936,155/81,386,334
  6. Step 6: Final answer
    x = 69,583,376.21

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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.