Home / 208,592,218.98-287,892,886.77-120,470,378.22

Finding the Fourth Proportional to 208,592,218.98, 287,892,886.77 and 120,470,378.22

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Solution

The fourth proportional to 208,592,218.98, 287,892,886.77 and 120,470,378.22 is: 166,269,696.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,592,218.98 : 287,892,886.77 = 120,470,378.22 : x
  2. Step 2: Convert to fraction form
    208,592,218.98/287,892,886.77 = 120,470,378.22/x
  3. Step 3: Cross multiply
    208,592,218.98x = 287,892,886.77 × 120,470,378.22
  4. Step 4: Simplify right side
    208,592,218.98x = 34,682,564,956,029,532
  5. Step 5: Solve for x
    x = 34,682,564,956,029,532/208,592,218.98
  6. Step 6: Final answer
    x = 166,269,696.57

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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.