Home / 289,565,013,661.20-399,599,784,078.30-159,353,868,249.83

Finding the Fourth Proportional to 289,565,013,661.20, 399,599,784,078.30 and 159,353,868,249.83

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Solution

The fourth proportional to 289,565,013,661.20, 399,599,784,078.30 and 159,353,868,249.83 is: 219,908,374,079.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,565,013,661.20 : 399,599,784,078.30 = 159,353,868,249.83 : x
  2. Step 2: Convert to fraction form
    289,565,013,661.20/399,599,784,078.30 = 159,353,868,249.83/x
  3. Step 3: Cross multiply
    289,565,013,661.20x = 399,599,784,078.30 × 159,353,868,249.83
  4. Step 4: Simplify right side
    289,565,013,661.20x = 63,677,771,344,673,924,710,400
  5. Step 5: Solve for x
    x = 63,677,771,344,673,924,710,400/289,565,013,661.20
  6. Step 6: Final answer
    x = 219,908,374,079.95

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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.