Home / 130,769,234.72-180,459,339.20-72,037,393.76

Finding the Fourth Proportional to 130,769,234.72, 180,459,339.20 and 72,037,393.76

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Solution

The fourth proportional to 130,769,234.72, 180,459,339.20 and 72,037,393.76 is: 99,410,388.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,769,234.72 : 180,459,339.20 = 72,037,393.76 : x
  2. Step 2: Convert to fraction form
    130,769,234.72/180,459,339.20 = 72,037,393.76/x
  3. Step 3: Cross multiply
    130,769,234.72x = 180,459,339.20 × 72,037,393.76
  4. Step 4: Simplify right side
    130,769,234.72x = 12,999,820,475,619,804
  5. Step 5: Solve for x
    x = 12,999,820,475,619,804/130,769,234.72
  6. Step 6: Final answer
    x = 99,410,388.87

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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.