Home / 128,506,876.92-192,836,907.29-46,632,142.40

Finding the Fourth Proportional to 128,506,876.92, 192,836,907.29 and 46,632,142.40

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Solution

The fourth proportional to 128,506,876.92, 192,836,907.29 and 46,632,142.40 is: 69,976,007.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,506,876.92 : 192,836,907.29 = 46,632,142.40 : x
  2. Step 2: Convert to fraction form
    128,506,876.92/192,836,907.29 = 46,632,142.40/x
  3. Step 3: Cross multiply
    128,506,876.92x = 192,836,907.29 × 46,632,142.40
  4. Step 4: Simplify right side
    128,506,876.92x = 8,992,398,119,875,274
  5. Step 5: Solve for x
    x = 8,992,398,119,875,274/128,506,876.92
  6. Step 6: Final answer
    x = 69,976,007.01

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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.