Home / 139,256,752,432.94-192,173,163,142.95-78,289,391,409.33

Finding the Fourth Proportional to 139,256,752,432.94, 192,173,163,142.95 and 78,289,391,409.33

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Solution

The fourth proportional to 139,256,752,432.94, 192,173,163,142.95 and 78,289,391,409.33 is: 108,038,710,689.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,256,752,432.94 : 192,173,163,142.95 = 78,289,391,409.33 : x
  2. Step 2: Convert to fraction form
    139,256,752,432.94/192,173,163,142.95 = 78,289,391,409.33/x
  3. Step 3: Cross multiply
    139,256,752,432.94x = 192,173,163,142.95 × 78,289,391,409.33
  4. Step 4: Simplify right side
    139,256,752,432.94x = 15,045,119,987,667,443,908,608
  5. Step 5: Solve for x
    x = 15,045,119,987,667,443,908,608/139,256,752,432.94
  6. Step 6: Final answer
    x = 108,038,710,689.54

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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.