Home / 120,420,120,486.35-180,709,758,312.83-56,695,690,326.08

Finding the Fourth Proportional to 120,420,120,486.35, 180,709,758,312.83 and 56,695,690,326.08

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Solution

The fourth proportional to 120,420,120,486.35, 180,709,758,312.83 and 56,695,690,326.08 is: 85,081,001,869.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,420,120,486.35 : 180,709,758,312.83 = 56,695,690,326.08 : x
  2. Step 2: Convert to fraction form
    120,420,120,486.35/180,709,758,312.83 = 56,695,690,326.08/x
  3. Step 3: Cross multiply
    120,420,120,486.35x = 180,709,758,312.83 × 56,695,690,326.08
  4. Step 4: Simplify right side
    120,420,120,486.35x = 10,245,464,496,205,511,786,496
  5. Step 5: Solve for x
    x = 10,245,464,496,205,511,786,496/120,420,120,486.35
  6. Step 6: Final answer
    x = 85,081,001,869.34

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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.