Home / 142,976,175,352.71-197,316,082,696.11-78,746,886,889.35

Finding the Fourth Proportional to 142,976,175,352.71, 197,316,082,696.11 and 78,746,886,889.35

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Solution

The fourth proportional to 142,976,175,352.71, 197,316,082,696.11 and 78,746,886,889.35 is: 108,675,639,190.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,976,175,352.71 : 197,316,082,696.11 = 78,746,886,889.35 : x
  2. Step 2: Convert to fraction form
    142,976,175,352.71/197,316,082,696.11 = 78,746,886,889.35/x
  3. Step 3: Cross multiply
    142,976,175,352.71x = 197,316,082,696.11 × 78,746,886,889.35
  4. Step 4: Simplify right side
    142,976,175,352.71x = 15,538,027,245,520,205,905,920
  5. Step 5: Solve for x
    x = 15,538,027,245,520,205,905,920/142,976,175,352.71
  6. Step 6: Final answer
    x = 108,675,639,190.86

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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.