Home / 845,779,940.80-1,268,669,911.20-788,384,312.80

Finding the Fourth Proportional to 845,779,940.80, 1,268,669,911.20 and 788,384,312.80

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Solution

The fourth proportional to 845,779,940.80, 1,268,669,911.20 and 788,384,312.80 is: 1,182,576,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,779,940.80 : 1,268,669,911.20 = 788,384,312.80 : x
  2. Step 2: Convert to fraction form
    845,779,940.80/1,268,669,911.20 = 788,384,312.80/x
  3. Step 3: Cross multiply
    845,779,940.80x = 1,268,669,911.20 × 788,384,312.80
  4. Step 4: Simplify right side
    845,779,940.80x = 1,000,199,456,111,448,960
  5. Step 5: Solve for x
    x = 1,000,199,456,111,448,960/845,779,940.80
  6. Step 6: Final answer
    x = 1,182,576,469.20

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1.5x scale

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.