Home / 86,908,021.20-130,362,031.80-43,760,552.40

Finding the Fourth Proportional to 86,908,021.20, 130,362,031.80 and 43,760,552.40

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Solution

The fourth proportional to 86,908,021.20, 130,362,031.80 and 43,760,552.40 is: 65,640,828.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,908,021.20 : 130,362,031.80 = 43,760,552.40 : x
  2. Step 2: Convert to fraction form
    86,908,021.20/130,362,031.80 = 43,760,552.40/x
  3. Step 3: Cross multiply
    86,908,021.20x = 130,362,031.80 × 43,760,552.40
  4. Step 4: Simplify right side
    86,908,021.20x = 5,704,714,523,554,366
  5. Step 5: Solve for x
    x = 5,704,714,523,554,366/86,908,021.20
  6. Step 6: Final answer
    x = 65,640,828.60

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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.