Home / 129,084,293.25-178,136,328.33-71,137,541.25

Finding the Fourth Proportional to 129,084,293.25, 178,136,328.33 and 71,137,541.25

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Solution

The fourth proportional to 129,084,293.25, 178,136,328.33 and 71,137,541.25 is: 98,169,808.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,084,293.25 : 178,136,328.33 = 71,137,541.25 : x
  2. Step 2: Convert to fraction form
    129,084,293.25/178,136,328.33 = 71,137,541.25/x
  3. Step 3: Cross multiply
    129,084,293.25x = 178,136,328.33 × 71,137,541.25
  4. Step 4: Simplify right side
    129,084,293.25x = 12,672,180,404,698,920
  5. Step 5: Solve for x
    x = 12,672,180,404,698,920/129,084,293.25
  6. Step 6: Final answer
    x = 98,169,808.93

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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.