Home / 131,058,509.44-180,896,720.16-76,072,080.64

Finding the Fourth Proportional to 131,058,509.44, 180,896,720.16 and 76,072,080.64

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Solution

The fourth proportional to 131,058,509.44, 180,896,720.16 and 76,072,080.64 is: 105,000,353.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,058,509.44 : 180,896,720.16 = 76,072,080.64 : x
  2. Step 2: Convert to fraction form
    131,058,509.44/180,896,720.16 = 76,072,080.64/x
  3. Step 3: Cross multiply
    131,058,509.44x = 180,896,720.16 × 76,072,080.64
  4. Step 4: Simplify right side
    131,058,509.44x = 13,761,189,883,523,034
  5. Step 5: Solve for x
    x = 13,761,189,883,523,034/131,058,509.44
  6. Step 6: Final answer
    x = 105,000,353.98

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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.