Home / 616,987,135.87-851,457,915.32-338,528,585.59

Finding the Fourth Proportional to 616,987,135.87, 851,457,915.32 and 338,528,585.59

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Solution

The fourth proportional to 616,987,135.87, 851,457,915.32 and 338,528,585.59 is: 467,178,044.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,987,135.87 : 851,457,915.32 = 338,528,585.59 : x
  2. Step 2: Convert to fraction form
    616,987,135.87/851,457,915.32 = 338,528,585.59/x
  3. Step 3: Cross multiply
    616,987,135.87x = 851,457,915.32 × 338,528,585.59
  4. Step 4: Simplify right side
    616,987,135.87x = 288,242,843,762,689,600
  5. Step 5: Solve for x
    x = 288,242,843,762,689,600/616,987,135.87
  6. Step 6: Final answer
    x = 467,178,044.74

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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.