Home / 1,284,837,061.90-1,772,918,390-720,191,628.22

Finding the Fourth Proportional to 1,284,837,061.90, 1,772,918,390 and 720,191,628.22

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Solution

The fourth proportional to 1,284,837,061.90, 1,772,918,390 and 720,191,628.22 is: 993,776,580.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,837,061.90 : 1,772,918,390 = 720,191,628.22 : x
  2. Step 2: Convert to fraction form
    1,284,837,061.90/1,772,918,390 = 720,191,628.22/x
  3. Step 3: Cross multiply
    1,284,837,061.90x = 1,772,918,390 × 720,191,628.22
  4. Step 4: Simplify right side
    1,284,837,061.90x = 1,276,840,981,995,280,896
  5. Step 5: Solve for x
    x = 1,276,840,981,995,280,896/1,284,837,061.90
  6. Step 6: Final answer
    x = 993,776,580.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.