Home / 1,047,543,005.53-1,571,581,409.78-310,639,829.05

Finding the Fourth Proportional to 1,047,543,005.53, 1,571,581,409.78 and 310,639,829.05

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Solution

The fourth proportional to 1,047,543,005.53, 1,571,581,409.78 and 310,639,829.05 is: 466,038,890.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,543,005.53 : 1,571,581,409.78 = 310,639,829.05 : x
  2. Step 2: Convert to fraction form
    1,047,543,005.53/1,571,581,409.78 = 310,639,829.05/x
  3. Step 3: Cross multiply
    1,047,543,005.53x = 1,571,581,409.78 × 310,639,829.05
  4. Step 4: Simplify right side
    1,047,543,005.53x = 488,195,780,474,958,272
  5. Step 5: Solve for x
    x = 488,195,780,474,958,272/1,047,543,005.53
  6. Step 6: Final answer
    x = 466,038,890.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.