Home / 142,685,211.08-196,906,599.06-77,495,115.08

Finding the Fourth Proportional to 142,685,211.08, 196,906,599.06 and 77,495,115.08

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Solution

The fourth proportional to 142,685,211.08, 196,906,599.06 and 77,495,115.08 is: 106,943,806.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,685,211.08 : 196,906,599.06 = 77,495,115.08 : x
  2. Step 2: Convert to fraction form
    142,685,211.08/196,906,599.06 = 77,495,115.08/x
  3. Step 3: Cross multiply
    142,685,211.08x = 196,906,599.06 × 77,495,115.08
  4. Step 4: Simplify right side
    142,685,211.08x = 15,259,299,554,166,120
  5. Step 5: Solve for x
    x = 15,259,299,554,166,120/142,685,211.08
  6. Step 6: Final answer
    x = 106,943,806.15

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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.