Home / 5,551,139.40-7,656,345.60-4,778,085.96

Finding the Fourth Proportional to 5,551,139.40, 7,656,345.60 and 4,778,085.96

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Solution

The fourth proportional to 5,551,139.40, 7,656,345.60 and 4,778,085.96 is: 6,590,120.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,551,139.40 : 7,656,345.60 = 4,778,085.96 : x
  2. Step 2: Convert to fraction form
    5,551,139.40/7,656,345.60 = 4,778,085.96/x
  3. Step 3: Cross multiply
    5,551,139.40x = 7,656,345.60 × 4,778,085.96
  4. Step 4: Simplify right side
    5,551,139.40x = 36,582,677,416,267.77
  5. Step 5: Solve for x
    x = 36,582,677,416,267.77/5,551,139.40
  6. Step 6: Final answer
    x = 6,590,120.47

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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.