Home / 287,641,361.64-396,944,907.96-155,482,360.26

Finding the Fourth Proportional to 287,641,361.64, 396,944,907.96 and 155,482,360.26

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Solution

The fourth proportional to 287,641,361.64, 396,944,907.96 and 155,482,360.26 is: 214,565,564.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,641,361.64 : 396,944,907.96 = 155,482,360.26 : x
  2. Step 2: Convert to fraction form
    287,641,361.64/396,944,907.96 = 155,482,360.26/x
  3. Step 3: Cross multiply
    287,641,361.64x = 396,944,907.96 × 155,482,360.26
  4. Step 4: Simplify right side
    287,641,361.64x = 61,717,931,182,809,256
  5. Step 5: Solve for x
    x = 61,717,931,182,809,256/287,641,361.64
  6. Step 6: Final answer
    x = 214,565,564.67

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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.