Home / 86,889,660.80-130,222,516.80-66,594,300.80

Finding the Fourth Proportional to 86,889,660.80, 130,222,516.80 and 66,594,300.80

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Solution

The fourth proportional to 86,889,660.80, 130,222,516.80 and 66,594,300.80 is: 99,805,631.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,889,660.80 : 130,222,516.80 = 66,594,300.80 : x
  2. Step 2: Convert to fraction form
    86,889,660.80/130,222,516.80 = 66,594,300.80/x
  3. Step 3: Cross multiply
    86,889,660.80x = 130,222,516.80 × 66,594,300.80
  4. Step 4: Simplify right side
    86,889,660.80x = 8,672,077,454,712,253
  5. Step 5: Solve for x
    x = 8,672,077,454,712,253/86,889,660.80
  6. Step 6: Final answer
    x = 99,805,631.36

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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.