Home / 1,021,355,920.82-1,409,427,622.26-569,209,828.88

Finding the Fourth Proportional to 1,021,355,920.82, 1,409,427,622.26 and 569,209,828.88

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Solution

The fourth proportional to 1,021,355,920.82, 1,409,427,622.26 and 569,209,828.88 is: 785,485,293.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,355,920.82 : 1,409,427,622.26 = 569,209,828.88 : x
  2. Step 2: Convert to fraction form
    1,021,355,920.82/1,409,427,622.26 = 569,209,828.88/x
  3. Step 3: Cross multiply
    1,021,355,920.82x = 1,409,427,622.26 × 569,209,828.88
  4. Step 4: Simplify right side
    1,021,355,920.82x = 802,260,055,678,312,704
  5. Step 5: Solve for x
    x = 802,260,055,678,312,704/1,021,355,920.82
  6. Step 6: Final answer
    x = 785,485,293.94

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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.