Home / 889,237,756.72-1,227,155,309.46-492,767,368.84

Finding the Fourth Proportional to 889,237,756.72, 1,227,155,309.46 and 492,767,368.84

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Solution

The fourth proportional to 889,237,756.72, 1,227,155,309.46 and 492,767,368.84 is: 680,022,961.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,237,756.72 : 1,227,155,309.46 = 492,767,368.84 : x
  2. Step 2: Convert to fraction form
    889,237,756.72/1,227,155,309.46 = 492,767,368.84/x
  3. Step 3: Cross multiply
    889,237,756.72x = 1,227,155,309.46 × 492,767,368.84
  4. Step 4: Simplify right side
    889,237,756.72x = 604,702,093,000,640,128
  5. Step 5: Solve for x
    x = 604,702,093,000,640,128/889,237,756.72
  6. Step 6: Final answer
    x = 680,022,961.72

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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.