Home / 1,318,963,119.56-1,820,086,320.03-724,243,439.69

Finding the Fourth Proportional to 1,318,963,119.56, 1,820,086,320.03 and 724,243,439.69

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Solution

The fourth proportional to 1,318,963,119.56, 1,820,086,320.03 and 724,243,439.69 is: 999,410,489.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,963,119.56 : 1,820,086,320.03 = 724,243,439.69 : x
  2. Step 2: Convert to fraction form
    1,318,963,119.56/1,820,086,320.03 = 724,243,439.69/x
  3. Step 3: Cross multiply
    1,318,963,119.56x = 1,820,086,320.03 × 724,243,439.69
  4. Step 4: Simplify right side
    1,318,963,119.56x = 1,318,185,576,951,241,472
  5. Step 5: Solve for x
    x = 1,318,185,576,951,241,472/1,318,963,119.56
  6. Step 6: Final answer
    x = 999,410,489.50

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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.