Home / 812,465,458.16-1,217,975,427.48-352,152,521.60

Finding the Fourth Proportional to 812,465,458.16, 1,217,975,427.48 and 352,152,521.60

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Solution

The fourth proportional to 812,465,458.16, 1,217,975,427.48 and 352,152,521.60 is: 527,915,511.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,465,458.16 : 1,217,975,427.48 = 352,152,521.60 : x
  2. Step 2: Convert to fraction form
    812,465,458.16/1,217,975,427.48 = 352,152,521.60/x
  3. Step 3: Cross multiply
    812,465,458.16x = 1,217,975,427.48 × 352,152,521.60
  4. Step 4: Simplify right side
    812,465,458.16x = 428,913,118,033,920,000
  5. Step 5: Solve for x
    x = 428,913,118,033,920,000/812,465,458.16
  6. Step 6: Final answer
    x = 527,915,511.64

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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.