Home / 208,528,300.20-312,904,424.70-87,371,999.40

Finding the Fourth Proportional to 208,528,300.20, 312,904,424.70 and 87,371,999.40

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Solution

The fourth proportional to 208,528,300.20, 312,904,424.70 and 87,371,999.40 is: 131,104,915.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,528,300.20 : 312,904,424.70 = 87,371,999.40 : x
  2. Step 2: Convert to fraction form
    208,528,300.20/312,904,424.70 = 87,371,999.40/x
  3. Step 3: Cross multiply
    208,528,300.20x = 312,904,424.70 × 87,371,999.40
  4. Step 4: Simplify right side
    208,528,300.20x = 27,339,085,207,145,748
  5. Step 5: Solve for x
    x = 27,339,085,207,145,748/208,528,300.20
  6. Step 6: Final answer
    x = 131,104,915.64

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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.