Home / 1,621,795,755.13-2,238,165,041.61-907,288,684.93

Finding the Fourth Proportional to 1,621,795,755.13, 2,238,165,041.61 and 907,288,684.93

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Solution

The fourth proportional to 1,621,795,755.13, 2,238,165,041.61 and 907,288,684.93 is: 1,252,106,999.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,795,755.13 : 2,238,165,041.61 = 907,288,684.93 : x
  2. Step 2: Convert to fraction form
    1,621,795,755.13/2,238,165,041.61 = 907,288,684.93/x
  3. Step 3: Cross multiply
    1,621,795,755.13x = 2,238,165,041.61 × 907,288,684.93
  4. Step 4: Simplify right side
    1,621,795,755.13x = 2,030,661,817,258,635,520
  5. Step 5: Solve for x
    x = 2,030,661,817,258,635,520/1,621,795,755.13
  6. Step 6: Final answer
    x = 1,252,106,999.81

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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.