Home / 129,774,978,889.20-194,507,500,138.20-54,227,983,534.20

Finding the Fourth Proportional to 129,774,978,889.20, 194,507,500,138.20 and 54,227,983,534.20

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Solution

The fourth proportional to 129,774,978,889.20, 194,507,500,138.20 and 54,227,983,534.20 is: 81,277,220,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,774,978,889.20 : 194,507,500,138.20 = 54,227,983,534.20 : x
  2. Step 2: Convert to fraction form
    129,774,978,889.20/194,507,500,138.20 = 54,227,983,534.20/x
  3. Step 3: Cross multiply
    129,774,978,889.20x = 194,507,500,138.20 × 54,227,983,534.20
  4. Step 4: Simplify right side
    129,774,978,889.20x = 10,547,749,514,772,714,881,024
  5. Step 5: Solve for x
    x = 10,547,749,514,772,714,881,024/129,774,978,889.20
  6. Step 6: Final answer
    x = 81,277,220,039.30

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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.