Home / 186,631,999.40-279,947,999.10-65,419,711.40

Finding the Fourth Proportional to 186,631,999.40, 279,947,999.10 and 65,419,711.40

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Solution

The fourth proportional to 186,631,999.40, 279,947,999.10 and 65,419,711.40 is: 98,129,567.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,631,999.40 : 279,947,999.10 = 65,419,711.40 : x
  2. Step 2: Convert to fraction form
    186,631,999.40/279,947,999.10 = 65,419,711.40/x
  3. Step 3: Cross multiply
    186,631,999.40x = 279,947,999.10 × 65,419,711.40
  4. Step 4: Simplify right side
    186,631,999.40x = 18,314,117,308,129,460
  5. Step 5: Solve for x
    x = 18,314,117,308,129,460/186,631,999.40
  6. Step 6: Final answer
    x = 98,129,567.10

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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.