Home / 186,624,666.40-279,936,999.60-118,544,231.20

Finding the Fourth Proportional to 186,624,666.40, 279,936,999.60 and 118,544,231.20

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Solution

The fourth proportional to 186,624,666.40, 279,936,999.60 and 118,544,231.20 is: 177,816,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,624,666.40 : 279,936,999.60 = 118,544,231.20 : x
  2. Step 2: Convert to fraction form
    186,624,666.40/279,936,999.60 = 118,544,231.20/x
  3. Step 3: Cross multiply
    186,624,666.40x = 279,936,999.60 × 118,544,231.20
  4. Step 4: Simplify right side
    186,624,666.40x = 33,184,916,402,016,712
  5. Step 5: Solve for x
    x = 33,184,916,402,016,712/186,624,666.40
  6. Step 6: Final answer
    x = 177,816,346.80

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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.