Home / 1,119,631,235.36-1,545,856,132.56-724,111,527.20

Finding the Fourth Proportional to 1,119,631,235.36, 1,545,856,132.56 and 724,111,527.20

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Solution

The fourth proportional to 1,119,631,235.36, 1,545,856,132.56 and 724,111,527.20 is: 999,768,682.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,631,235.36 : 1,545,856,132.56 = 724,111,527.20 : x
  2. Step 2: Convert to fraction form
    1,119,631,235.36/1,545,856,132.56 = 724,111,527.20/x
  3. Step 3: Cross multiply
    1,119,631,235.36x = 1,545,856,132.56 × 724,111,527.20
  4. Step 4: Simplify right side
    1,119,631,235.36x = 1,119,372,244,979,507,328
  5. Step 5: Solve for x
    x = 1,119,372,244,979,507,328/1,119,631,235.36
  6. Step 6: Final answer
    x = 999,768,682.43

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Double scale
Find fourth proportional to 1,119,631,236.36, 1,545,856,133.94 and 724,111,528.20
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1.5x scale

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.