Home / 1,114,780,157.28-1,538,309,471.76-619,712,719.20

Finding the Fourth Proportional to 1,114,780,157.28, 1,538,309,471.76 and 619,712,719.20

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Solution

The fourth proportional to 1,114,780,157.28, 1,538,309,471.76 and 619,712,719.20 is: 855,155,107.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,780,157.28 : 1,538,309,471.76 = 619,712,719.20 : x
  2. Step 2: Convert to fraction form
    1,114,780,157.28/1,538,309,471.76 = 619,712,719.20/x
  3. Step 3: Cross multiply
    1,114,780,157.28x = 1,538,309,471.76 × 619,712,719.20
  4. Step 4: Simplify right side
    1,114,780,157.28x = 953,309,945,715,505,280
  5. Step 5: Solve for x
    x = 953,309,945,715,505,280/1,114,780,157.28
  6. Step 6: Final answer
    x = 855,155,107.93

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Half scale
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Double scale
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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.