Home / 12,399,901,719.65-18,594,680,971.09-3,889,091,746.39

Finding the Fourth Proportional to 12,399,901,719.65, 18,594,680,971.09 and 3,889,091,746.39

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Solution

The fourth proportional to 12,399,901,719.65, 18,594,680,971.09 and 3,889,091,746.39 is: 5,832,015,601.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399,901,719.65 : 18,594,680,971.09 = 3,889,091,746.39 : x
  2. Step 2: Convert to fraction form
    12,399,901,719.65/18,594,680,971.09 = 3,889,091,746.39/x
  3. Step 3: Cross multiply
    12,399,901,719.65x = 18,594,680,971.09 × 3,889,091,746.39
  4. Step 4: Simplify right side
    12,399,901,719.65x = 72,316,420,291,421,306,880
  5. Step 5: Solve for x
    x = 72,316,420,291,421,306,880/12,399,901,719.65
  6. Step 6: Final answer
    x = 5,832,015,601.93

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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.