Home / 692,742,532.92-1,039,105,128.43-168,115,980.30

Finding the Fourth Proportional to 692,742,532.92, 1,039,105,128.43 and 168,115,980.30

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Solution

The fourth proportional to 692,742,532.92, 1,039,105,128.43 and 168,115,980.30 is: 252,171,866.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,742,532.92 : 1,039,105,128.43 = 168,115,980.30 : x
  2. Step 2: Convert to fraction form
    692,742,532.92/1,039,105,128.43 = 168,115,980.30/x
  3. Step 3: Cross multiply
    692,742,532.92x = 1,039,105,128.43 × 168,115,980.30
  4. Step 4: Simplify right side
    692,742,532.92x = 174,690,177,296,130,496
  5. Step 5: Solve for x
    x = 174,690,177,296,130,496/692,742,532.92
  6. Step 6: Final answer
    x = 252,171,866.16

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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.