Home / 287,580,948,051.15-431,371,422,076.73-120,008,672,542.35

Finding the Fourth Proportional to 287,580,948,051.15, 431,371,422,076.73 and 120,008,672,542.35

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Solution

The fourth proportional to 287,580,948,051.15, 431,371,422,076.73 and 120,008,672,542.35 is: 180,013,008,813.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,580,948,051.15 : 431,371,422,076.73 = 120,008,672,542.35 : x
  2. Step 2: Convert to fraction form
    287,580,948,051.15/431,371,422,076.73 = 120,008,672,542.35/x
  3. Step 3: Cross multiply
    287,580,948,051.15x = 431,371,422,076.73 × 120,008,672,542.35
  4. Step 4: Simplify right side
    287,580,948,051.15x = 51,768,311,736,134,140,952,576
  5. Step 5: Solve for x
    x = 51,768,311,736,134,140,952,576/287,580,948,051.15
  6. Step 6: Final answer
    x = 180,013,008,813.53

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1.5x scale

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.