Home / 135,449,643-186,922,969.68-76,724,501.25

Finding the Fourth Proportional to 135,449,643, 186,922,969.68 and 76,724,501.25

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Solution

The fourth proportional to 135,449,643, 186,922,969.68 and 76,724,501.25 is: 105,881,206.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,449,643 : 186,922,969.68 = 76,724,501.25 : x
  2. Step 2: Convert to fraction form
    135,449,643/186,922,969.68 = 76,724,501.25/x
  3. Step 3: Cross multiply
    135,449,643x = 186,922,969.68 × 76,724,501.25
  4. Step 4: Simplify right side
    135,449,643x = 14,341,571,620,866,872
  5. Step 5: Solve for x
    x = 14,341,571,620,866,872/135,449,643
  6. Step 6: Final answer
    x = 105,881,206.50

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1.5x scale

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.