Home / 76,778,985.60-114,944,529.60-68,716,828.80

Finding the Fourth Proportional to 76,778,985.60, 114,944,529.60 and 68,716,828.80

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Solution

The fourth proportional to 76,778,985.60, 114,944,529.60 and 68,716,828.80 is: 102,874,810.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,778,985.60 : 114,944,529.60 = 68,716,828.80 : x
  2. Step 2: Convert to fraction form
    76,778,985.60/114,944,529.60 = 68,716,828.80/x
  3. Step 3: Cross multiply
    76,778,985.60x = 114,944,529.60 × 68,716,828.80
  4. Step 4: Simplify right side
    76,778,985.60x = 7,898,623,562,019,732
  5. Step 5: Solve for x
    x = 7,898,623,562,019,732/76,778,985.60
  6. Step 6: Final answer
    x = 102,874,810.08

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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.