Home / 128,611,427.84-177,485,784-69,875,256.32

Finding the Fourth Proportional to 128,611,427.84, 177,485,784 and 69,875,256.32

Calculator

Solution

The fourth proportional to 128,611,427.84, 177,485,784 and 69,875,256.32 is: 96,428,947.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,611,427.84 : 177,485,784 = 69,875,256.32 : x
  2. Step 2: Convert to fraction form
    128,611,427.84/177,485,784 = 69,875,256.32/x
  3. Step 3: Cross multiply
    128,611,427.84x = 177,485,784 × 69,875,256.32
  4. Step 4: Simplify right side
    128,611,427.84x = 12,401,864,650,156,154
  5. Step 5: Solve for x
    x = 12,401,864,650,156,154/128,611,427.84
  6. Step 6: Final answer
    x = 96,428,947.71

Related Problems

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.