Home / 1,119,631,223.36-1,545,856,116-724,111,515.20

Finding the Fourth Proportional to 1,119,631,223.36, 1,545,856,116 and 724,111,515.20

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Solution

The fourth proportional to 1,119,631,223.36, 1,545,856,116 and 724,111,515.20 is: 999,768,665.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,631,223.36 : 1,545,856,116 = 724,111,515.20 : x
  2. Step 2: Convert to fraction form
    1,119,631,223.36/1,545,856,116 = 724,111,515.20/x
  3. Step 3: Cross multiply
    1,119,631,223.36x = 1,545,856,116 × 724,111,515.20
  4. Step 4: Simplify right side
    1,119,631,223.36x = 1,119,372,214,437,947,008
  5. Step 5: Solve for x
    x = 1,119,372,214,437,947,008/1,119,631,223.36
  6. Step 6: Final answer
    x = 999,768,665.86

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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.