Home / 289,565,013,662.41-399,599,784,080.01-159,353,868,251.05

Finding the Fourth Proportional to 289,565,013,662.41, 399,599,784,080.01 and 159,353,868,251.05

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Solution

The fourth proportional to 289,565,013,662.41, 399,599,784,080.01 and 159,353,868,251.05 is: 219,908,374,081.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,565,013,662.41 : 399,599,784,080.01 = 159,353,868,251.05 : x
  2. Step 2: Convert to fraction form
    289,565,013,662.41/399,599,784,080.01 = 159,353,868,251.05/x
  3. Step 3: Cross multiply
    289,565,013,662.41x = 399,599,784,080.01 × 159,353,868,251.05
  4. Step 4: Simplify right side
    289,565,013,662.41x = 63,677,771,345,433,940,983,808
  5. Step 5: Solve for x
    x = 63,677,771,345,433,940,983,808/289,565,013,662.41
  6. Step 6: Final answer
    x = 219,908,374,081.66

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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.