Home / 692,644,672.80-1,038,967,009.20-630,162,957.60

Finding the Fourth Proportional to 692,644,672.80, 1,038,967,009.20 and 630,162,957.60

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Solution

The fourth proportional to 692,644,672.80, 1,038,967,009.20 and 630,162,957.60 is: 945,244,436.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,644,672.80 : 1,038,967,009.20 = 630,162,957.60 : x
  2. Step 2: Convert to fraction form
    692,644,672.80/1,038,967,009.20 = 630,162,957.60/x
  3. Step 3: Cross multiply
    692,644,672.80x = 1,038,967,009.20 × 630,162,957.60
  4. Step 4: Simplify right side
    692,644,672.80x = 654,718,523,366,298,496
  5. Step 5: Solve for x
    x = 654,718,523,366,298,496/692,644,672.80
  6. Step 6: Final answer
    x = 945,244,436.40

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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.