Home / 128,112,074.52-192,128,366.49-46,220,307.04

Finding the Fourth Proportional to 128,112,074.52, 192,128,366.49 and 46,220,307.04

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Solution

The fourth proportional to 128,112,074.52, 192,128,366.49 and 46,220,307.04 is: 69,316,121.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,112,074.52 : 192,128,366.49 = 46,220,307.04 : x
  2. Step 2: Convert to fraction form
    128,112,074.52/192,128,366.49 = 46,220,307.04/x
  3. Step 3: Cross multiply
    128,112,074.52x = 192,128,366.49 × 46,220,307.04
  4. Step 4: Simplify right side
    128,112,074.52x = 8,880,232,090,261,447
  5. Step 5: Solve for x
    x = 8,880,232,090,261,447/128,112,074.52
  6. Step 6: Final answer
    x = 69,316,121.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.