Home / 1,277,586,081.98-1,916,532,110.91-392,155,462.58

Finding the Fourth Proportional to 1,277,586,081.98, 1,916,532,110.91 and 392,155,462.58

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Solution

The fourth proportional to 1,277,586,081.98, 1,916,532,110.91 and 392,155,462.58 is: 588,280,153.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,586,081.98 : 1,916,532,110.91 = 392,155,462.58 : x
  2. Step 2: Convert to fraction form
    1,277,586,081.98/1,916,532,110.91 = 392,155,462.58/x
  3. Step 3: Cross multiply
    1,277,586,081.98x = 1,916,532,110.91 × 392,155,462.58
  4. Step 4: Simplify right side
    1,277,586,081.98x = 751,578,536,503,334,912
  5. Step 5: Solve for x
    x = 751,578,536,503,334,912/1,277,586,081.98
  6. Step 6: Final answer
    x = 588,280,153.57

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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.