Home / 216,849,206,945.61-299,259,163,940.45-120,509,353,967.85

Finding the Fourth Proportional to 216,849,206,945.61, 299,259,163,940.45 and 120,509,353,967.85

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Solution

The fourth proportional to 216,849,206,945.61, 299,259,163,940.45 and 120,509,353,967.85 is: 166,306,942,152.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,849,206,945.61 : 299,259,163,940.45 = 120,509,353,967.85 : x
  2. Step 2: Convert to fraction form
    216,849,206,945.61/299,259,163,940.45 = 120,509,353,967.85/x
  3. Step 3: Cross multiply
    216,849,206,945.61x = 299,259,163,940.45 × 120,509,353,967.85
  4. Step 4: Simplify right side
    216,849,206,945.61x = 36,063,528,515,422,545,510,400
  5. Step 5: Solve for x
    x = 36,063,528,515,422,545,510,400/216,849,206,945.61
  6. Step 6: Final answer
    x = 166,306,942,152.98

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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.