Home / 369,989,817.09-555,018,840.78-120,996,366.02

Finding the Fourth Proportional to 369,989,817.09, 555,018,840.78 and 120,996,366.02

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Solution

The fourth proportional to 369,989,817.09, 555,018,840.78 and 120,996,366.02 is: 181,505,705.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,989,817.09 : 555,018,840.78 = 120,996,366.02 : x
  2. Step 2: Convert to fraction form
    369,989,817.09/555,018,840.78 = 120,996,366.02/x
  3. Step 3: Cross multiply
    369,989,817.09x = 555,018,840.78 × 120,996,366.02
  4. Step 4: Simplify right side
    369,989,817.09x = 67,155,262,807,012,976
  5. Step 5: Solve for x
    x = 67,155,262,807,012,976/369,989,817.09
  6. Step 6: Final answer
    x = 181,505,705.58

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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.