Home / 1,942,147,915.29-2,911,969,328.65-761,847,654.35

Finding the Fourth Proportional to 1,942,147,915.29, 2,911,969,328.65 and 761,847,654.35

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Solution

The fourth proportional to 1,942,147,915.29, 2,911,969,328.65 and 761,847,654.35 is: 1,142,280,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,147,915.29 : 2,911,969,328.65 = 761,847,654.35 : x
  2. Step 2: Convert to fraction form
    1,942,147,915.29/2,911,969,328.65 = 761,847,654.35/x
  3. Step 3: Cross multiply
    1,942,147,915.29x = 2,911,969,328.65 × 761,847,654.35
  4. Step 4: Simplify right side
    1,942,147,915.29x = 2,218,477,002,576,521,984
  5. Step 5: Solve for x
    x = 2,218,477,002,576,521,984/1,942,147,915.29
  6. Step 6: Final answer
    x = 1,142,280,145.15

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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.