Home / 738,105,044.40-1,106,401,739.40-431,239,201.20

Finding the Fourth Proportional to 738,105,044.40, 1,106,401,739.40 and 431,239,201.20

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Solution

The fourth proportional to 738,105,044.40, 1,106,401,739.40 and 431,239,201.20 is: 646,417,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,105,044.40 : 1,106,401,739.40 = 431,239,201.20 : x
  2. Step 2: Convert to fraction form
    738,105,044.40/1,106,401,739.40 = 431,239,201.20/x
  3. Step 3: Cross multiply
    738,105,044.40x = 1,106,401,739.40 × 431,239,201.20
  4. Step 4: Simplify right side
    738,105,044.40x = 477,123,802,305,146,624
  5. Step 5: Solve for x
    x = 477,123,802,305,146,624/738,105,044.40
  6. Step 6: Final answer
    x = 646,417,208.40

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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.