Home / 809,685,620.40-1,116,531,041.40-692,598,575.28

Finding the Fourth Proportional to 809,685,620.40, 1,116,531,041.40 and 692,598,575.28

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Solution

The fourth proportional to 809,685,620.40, 1,116,531,041.40 and 692,598,575.28 is: 955,071,683.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,685,620.40 : 1,116,531,041.40 = 692,598,575.28 : x
  2. Step 2: Convert to fraction form
    809,685,620.40/1,116,531,041.40 = 692,598,575.28/x
  3. Step 3: Cross multiply
    809,685,620.40x = 1,116,531,041.40 × 692,598,575.28
  4. Step 4: Simplify right side
    809,685,620.40x = 773,307,808,529,534,720
  5. Step 5: Solve for x
    x = 773,307,808,529,534,720/809,685,620.40
  6. Step 6: Final answer
    x = 955,071,683.44

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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.