Home / 143,393,989.15-215,090,655.67-61,459,740.01

Finding the Fourth Proportional to 143,393,989.15, 215,090,655.67 and 61,459,740.01

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Solution

The fourth proportional to 143,393,989.15, 215,090,655.67 and 61,459,740.01 is: 92,189,469.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,393,989.15 : 215,090,655.67 = 61,459,740.01 : x
  2. Step 2: Convert to fraction form
    143,393,989.15/215,090,655.67 = 61,459,740.01/x
  3. Step 3: Cross multiply
    143,393,989.15x = 215,090,655.67 × 61,459,740.01
  4. Step 4: Simplify right side
    143,393,989.15x = 13,219,415,776,058,632
  5. Step 5: Solve for x
    x = 13,219,415,776,058,632/143,393,989.15
  6. Step 6: Final answer
    x = 92,189,469.41

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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.