Home / 78,115,532.32-117,157,281.84-29,576,640.16

Finding the Fourth Proportional to 78,115,532.32, 117,157,281.84 and 29,576,640.16

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Solution

The fourth proportional to 78,115,532.32, 117,157,281.84 and 29,576,640.16 is: 44,358,895.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,115,532.32 : 117,157,281.84 = 29,576,640.16 : x
  2. Step 2: Convert to fraction form
    78,115,532.32/117,157,281.84 = 29,576,640.16/x
  3. Step 3: Cross multiply
    78,115,532.32x = 117,157,281.84 × 29,576,640.16
  4. Step 4: Simplify right side
    78,115,532.32x = 3,465,118,767,105,383
  5. Step 5: Solve for x
    x = 3,465,118,767,105,383/78,115,532.32
  6. Step 6: Final answer
    x = 44,358,895.91

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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.