Home / 86,943,960.40-130,415,940.60-52,931,736.40

Finding the Fourth Proportional to 86,943,960.40, 130,415,940.60 and 52,931,736.40

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Solution

The fourth proportional to 86,943,960.40, 130,415,940.60 and 52,931,736.40 is: 79,397,604.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,943,960.40 : 130,415,940.60 = 52,931,736.40 : x
  2. Step 2: Convert to fraction form
    86,943,960.40/130,415,940.60 = 52,931,736.40/x
  3. Step 3: Cross multiply
    86,943,960.40x = 130,415,940.60 × 52,931,736.40
  4. Step 4: Simplify right side
    86,943,960.40x = 6,903,142,190,197,257
  5. Step 5: Solve for x
    x = 6,903,142,190,197,257/86,943,960.40
  6. Step 6: Final answer
    x = 79,397,604.60

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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.