Home / 1,420,916,057.42-2,120,966,739.29-1,253,177,334.59

Finding the Fourth Proportional to 1,420,916,057.42, 2,120,966,739.29 and 1,253,177,334.59

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Solution

The fourth proportional to 1,420,916,057.42, 2,120,966,739.29 and 1,253,177,334.59 is: 1,870,587,239.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,916,057.42 : 2,120,966,739.29 = 1,253,177,334.59 : x
  2. Step 2: Convert to fraction form
    1,420,916,057.42/2,120,966,739.29 = 1,253,177,334.59/x
  3. Step 3: Cross multiply
    1,420,916,057.42x = 2,120,966,739.29 × 1,253,177,334.59
  4. Step 4: Simplify right side
    1,420,916,057.42x = 2,657,947,445,090,013,696
  5. Step 5: Solve for x
    x = 2,657,947,445,090,013,696/1,420,916,057.42
  6. Step 6: Final answer
    x = 1,870,587,239.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.