Home / 1,442,321,847.77-2,151,356,264.96-1,309,912,824.40

Finding the Fourth Proportional to 1,442,321,847.77, 2,151,356,264.96 and 1,309,912,824.40

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Solution

The fourth proportional to 1,442,321,847.77, 2,151,356,264.96 and 1,309,912,824.40 is: 1,953,855,975.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,321,847.77 : 2,151,356,264.96 = 1,309,912,824.40 : x
  2. Step 2: Convert to fraction form
    1,442,321,847.77/2,151,356,264.96 = 1,309,912,824.40/x
  3. Step 3: Cross multiply
    1,442,321,847.77x = 2,151,356,264.96 × 1,309,912,824.40
  4. Step 4: Simplify right side
    1,442,321,847.77x = 2,818,089,161,312,460,288
  5. Step 5: Solve for x
    x = 2,818,089,161,312,460,288/1,442,321,847.77
  6. Step 6: Final answer
    x = 1,953,855,975.82

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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.