Home / 431,078,088.20-647,025,931.20-266,818,975.52

Finding the Fourth Proportional to 431,078,088.20, 647,025,931.20 and 266,818,975.52

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Solution

The fourth proportional to 431,078,088.20, 647,025,931.20 and 266,818,975.52 is: 400,481,492.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,078,088.20 : 647,025,931.20 = 266,818,975.52 : x
  2. Step 2: Convert to fraction form
    431,078,088.20/647,025,931.20 = 266,818,975.52/x
  3. Step 3: Cross multiply
    431,078,088.20x = 647,025,931.20 × 266,818,975.52
  4. Step 4: Simplify right side
    431,078,088.20x = 172,638,796,097,658,016
  5. Step 5: Solve for x
    x = 172,638,796,097,658,016/431,078,088.20
  6. Step 6: Final answer
    x = 400,481,492.39

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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.