Home / 186,039,667.20-279,059,500.80-121,416,441.60

Finding the Fourth Proportional to 186,039,667.20, 279,059,500.80 and 121,416,441.60

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Solution

The fourth proportional to 186,039,667.20, 279,059,500.80 and 121,416,441.60 is: 182,124,662.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,039,667.20 : 279,059,500.80 = 121,416,441.60 : x
  2. Step 2: Convert to fraction form
    186,039,667.20/279,059,500.80 = 121,416,441.60/x
  3. Step 3: Cross multiply
    186,039,667.20x = 279,059,500.80 × 121,416,441.60
  4. Step 4: Simplify right side
    186,039,667.20x = 33,882,411,581,808,352
  5. Step 5: Solve for x
    x = 33,882,411,581,808,352/186,039,667.20
  6. Step 6: Final answer
    x = 182,124,662.40

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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.