Home / 1,301,863,927.20-1,952,795,890.80-784,878,122.40

Finding the Fourth Proportional to 1,301,863,927.20, 1,952,795,890.80 and 784,878,122.40

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Solution

The fourth proportional to 1,301,863,927.20, 1,952,795,890.80 and 784,878,122.40 is: 1,177,317,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,863,927.20 : 1,952,795,890.80 = 784,878,122.40 : x
  2. Step 2: Convert to fraction form
    1,301,863,927.20/1,952,795,890.80 = 784,878,122.40/x
  3. Step 3: Cross multiply
    1,301,863,927.20x = 1,952,795,890.80 × 784,878,122.40
  4. Step 4: Simplify right side
    1,301,863,927.20x = 1,532,706,772,201,539,328
  5. Step 5: Solve for x
    x = 1,532,706,772,201,539,328/1,301,863,927.20
  6. Step 6: Final answer
    x = 1,177,317,183.60

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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.