Home / 86,669,133.40-130,036,877.70-85,308,851.80

Finding the Fourth Proportional to 86,669,133.40, 130,036,877.70 and 85,308,851.80

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Solution

The fourth proportional to 86,669,133.40, 130,036,877.70 and 85,308,851.80 is: 127,995,934.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,669,133.40 : 130,036,877.70 = 85,308,851.80 : x
  2. Step 2: Convert to fraction form
    86,669,133.40/130,036,877.70 = 85,308,851.80/x
  3. Step 3: Cross multiply
    86,669,133.40x = 130,036,877.70 × 85,308,851.80
  4. Step 4: Simplify right side
    86,669,133.40x = 11,093,296,728,244,024
  5. Step 5: Solve for x
    x = 11,093,296,728,244,024/86,669,133.40
  6. Step 6: Final answer
    x = 127,995,934.57

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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.