Home / 20,902,464,005.10-31,353,696,007.66-19,306,156,958.70

Finding the Fourth Proportional to 20,902,464,005.10, 31,353,696,007.66 and 19,306,156,958.70

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Solution

The fourth proportional to 20,902,464,005.10, 31,353,696,007.66 and 19,306,156,958.70 is: 28,959,235,438.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,902,464,005.10 : 31,353,696,007.66 = 19,306,156,958.70 : x
  2. Step 2: Convert to fraction form
    20,902,464,005.10/31,353,696,007.66 = 19,306,156,958.70/x
  3. Step 3: Cross multiply
    20,902,464,005.10x = 31,353,696,007.66 × 19,306,156,958.70
  4. Step 4: Simplify right side
    20,902,464,005.10x = 605,319,376,359,249,543,168
  5. Step 5: Solve for x
    x = 605,319,376,359,249,543,168/20,902,464,005.10
  6. Step 6: Final answer
    x = 28,959,235,438.06

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1.5x scale

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.