Home / 155,032,656,676.74-213,984,872,790.30-100,973,914,829.28

Finding the Fourth Proportional to 155,032,656,676.74, 213,984,872,790.30 and 100,973,914,829.28

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Solution

The fourth proportional to 155,032,656,676.74, 213,984,872,790.30 and 100,973,914,829.28 is: 139,369,928,781.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,032,656,676.74 : 213,984,872,790.30 = 100,973,914,829.28 : x
  2. Step 2: Convert to fraction form
    155,032,656,676.74/213,984,872,790.30 = 100,973,914,829.28/x
  3. Step 3: Cross multiply
    155,032,656,676.74x = 213,984,872,790.30 × 100,973,914,829.28
  4. Step 4: Simplify right side
    155,032,656,676.74x = 21,606,890,319,882,064,232,448
  5. Step 5: Solve for x
    x = 21,606,890,319,882,064,232,448/155,032,656,676.74
  6. Step 6: Final answer
    x = 139,369,928,781.75

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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.