Home / 431,569,968.30-647,354,952.45-395,857,133.10

Finding the Fourth Proportional to 431,569,968.30, 647,354,952.45 and 395,857,133.10

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Solution

The fourth proportional to 431,569,968.30, 647,354,952.45 and 395,857,133.10 is: 593,785,699.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,569,968.30 : 647,354,952.45 = 395,857,133.10 : x
  2. Step 2: Convert to fraction form
    431,569,968.30/647,354,952.45 = 395,857,133.10/x
  3. Step 3: Cross multiply
    431,569,968.30x = 647,354,952.45 × 395,857,133.10
  4. Step 4: Simplify right side
    431,569,968.30x = 256,260,075,574,943,840
  5. Step 5: Solve for x
    x = 256,260,075,574,943,840/431,569,968.30
  6. Step 6: Final answer
    x = 593,785,699.65

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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.