Home / 127,819,338.20-191,729,007.30-87,004,669.40

Finding the Fourth Proportional to 127,819,338.20, 191,729,007.30 and 87,004,669.40

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Solution

The fourth proportional to 127,819,338.20, 191,729,007.30 and 87,004,669.40 is: 130,507,004.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,819,338.20 : 191,729,007.30 = 87,004,669.40 : x
  2. Step 2: Convert to fraction form
    127,819,338.20/191,729,007.30 = 87,004,669.40/x
  3. Step 3: Cross multiply
    127,819,338.20x = 191,729,007.30 × 87,004,669.40
  4. Step 4: Simplify right side
    127,819,338.20x = 16,681,318,894,526,688
  5. Step 5: Solve for x
    x = 16,681,318,894,526,688/127,819,338.20
  6. Step 6: Final answer
    x = 130,507,004.10

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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.