Home / 287,580,948,045.90-431,371,422,068.85-120,008,672,537.10

Finding the Fourth Proportional to 287,580,948,045.90, 431,371,422,068.85 and 120,008,672,537.10

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Solution

The fourth proportional to 287,580,948,045.90, 431,371,422,068.85 and 120,008,672,537.10 is: 180,013,008,805.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,580,948,045.90 : 431,371,422,068.85 = 120,008,672,537.10 : x
  2. Step 2: Convert to fraction form
    287,580,948,045.90/431,371,422,068.85 = 120,008,672,537.10/x
  3. Step 3: Cross multiply
    287,580,948,045.90x = 431,371,422,068.85 × 120,008,672,537.10
  4. Step 4: Simplify right side
    287,580,948,045.90x = 51,768,311,732,923,770,339,328
  5. Step 5: Solve for x
    x = 51,768,311,732,923,770,339,328/287,580,948,045.90
  6. Step 6: Final answer
    x = 180,013,008,805.65

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Double scale
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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.