Home / 130,824,285.94-180,529,380.05-72,083,663.88

Finding the Fourth Proportional to 130,824,285.94, 180,529,380.05 and 72,083,663.88

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Solution

The fourth proportional to 130,824,285.94, 180,529,380.05 and 72,083,663.88 is: 99,470,974.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,824,285.94 : 180,529,380.05 = 72,083,663.88 : x
  2. Step 2: Convert to fraction form
    130,824,285.94/180,529,380.05 = 72,083,663.88/x
  3. Step 3: Cross multiply
    130,824,285.94x = 180,529,380.05 × 72,083,663.88
  4. Step 4: Simplify right side
    130,824,285.94x = 13,013,219,151,988,978
  5. Step 5: Solve for x
    x = 13,013,219,151,988,978/130,824,285.94
  6. Step 6: Final answer
    x = 99,470,974.05

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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.