Home / 369,989,817.84-555,018,841.91-120,996,366.76

Finding the Fourth Proportional to 369,989,817.84, 555,018,841.91 and 120,996,366.76

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Solution

The fourth proportional to 369,989,817.84, 555,018,841.91 and 120,996,366.76 is: 181,505,706.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,989,817.84 : 555,018,841.91 = 120,996,366.76 : x
  2. Step 2: Convert to fraction form
    369,989,817.84/555,018,841.91 = 120,996,366.76/x
  3. Step 3: Cross multiply
    369,989,817.84x = 555,018,841.91 × 120,996,366.76
  4. Step 4: Simplify right side
    369,989,817.84x = 67,155,263,354,452,816
  5. Step 5: Solve for x
    x = 67,155,263,354,452,816/369,989,817.84
  6. Step 6: Final answer
    x = 181,505,706.69

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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.