Home / 186,624,009.60-279,936,014.40-128,994,518.40

Finding the Fourth Proportional to 186,624,009.60, 279,936,014.40 and 128,994,518.40

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Solution

The fourth proportional to 186,624,009.60, 279,936,014.40 and 128,994,518.40 is: 193,491,777.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,624,009.60 : 279,936,014.40 = 128,994,518.40 : x
  2. Step 2: Convert to fraction form
    186,624,009.60/279,936,014.40 = 128,994,518.40/x
  3. Step 3: Cross multiply
    186,624,009.60x = 279,936,014.40 × 128,994,518.40
  4. Step 4: Simplify right side
    186,624,009.60x = 36,110,211,360,343,464
  5. Step 5: Solve for x
    x = 36,110,211,360,343,464/186,624,009.60
  6. Step 6: Final answer
    x = 193,491,777.60

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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.