Home / 287,901,826.22-397,303,323.50-155,742,496.96

Finding the Fourth Proportional to 287,901,826.22, 397,303,323.50 and 155,742,496.96

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Solution

The fourth proportional to 287,901,826.22, 397,303,323.50 and 155,742,496.96 is: 214,923,998.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,901,826.22 : 397,303,323.50 = 155,742,496.96 : x
  2. Step 2: Convert to fraction form
    287,901,826.22/397,303,323.50 = 155,742,496.96/x
  3. Step 3: Cross multiply
    287,901,826.22x = 397,303,323.50 × 155,742,496.96
  4. Step 4: Simplify right side
    287,901,826.22x = 61,877,011,652,396,648
  5. Step 5: Solve for x
    x = 61,877,011,652,396,648/287,901,826.22
  6. Step 6: Final answer
    x = 214,923,998.45

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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.