Home / 71,868,507,762.55-98,659,189,789.04-61,689,564,111.28

Finding the Fourth Proportional to 71,868,507,762.55, 98,659,189,789.04 and 61,689,564,111.28

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Solution

The fourth proportional to 71,868,507,762.55, 98,659,189,789.04 and 61,689,564,111.28 is: 84,685,804,716.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,868,507,762.55 : 98,659,189,789.04 = 61,689,564,111.28 : x
  2. Step 2: Convert to fraction form
    71,868,507,762.55/98,659,189,789.04 = 61,689,564,111.28/x
  3. Step 3: Cross multiply
    71,868,507,762.55x = 98,659,189,789.04 × 61,689,564,111.28
  4. Step 4: Simplify right side
    71,868,507,762.55x = 6,086,242,413,657,923,256,320
  5. Step 5: Solve for x
    x = 6,086,242,413,657,923,256,320/71,868,507,762.55
  6. Step 6: Final answer
    x = 84,685,804,716.67

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.