Home / 98,686,961.85-136,202,259.51-56,863,019.82

Finding the Fourth Proportional to 98,686,961.85, 136,202,259.51 and 56,863,019.82

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Solution

The fourth proportional to 98,686,961.85, 136,202,259.51 and 56,863,019.82 is: 78,479,179.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,686,961.85 : 136,202,259.51 = 56,863,019.82 : x
  2. Step 2: Convert to fraction form
    98,686,961.85/136,202,259.51 = 56,863,019.82/x
  3. Step 3: Cross multiply
    98,686,961.85x = 136,202,259.51 × 56,863,019.82
  4. Step 4: Simplify right side
    98,686,961.85x = 7,744,871,782,045,913
  5. Step 5: Solve for x
    x = 7,744,871,782,045,913/98,686,961.85
  6. Step 6: Final answer
    x = 78,479,179.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.