Home / 82,056,522.40-123,084,783.60-78,277,386.40

Finding the Fourth Proportional to 82,056,522.40, 123,084,783.60 and 78,277,386.40

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Solution

The fourth proportional to 82,056,522.40, 123,084,783.60 and 78,277,386.40 is: 117,416,079.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,056,522.40 : 123,084,783.60 = 78,277,386.40 : x
  2. Step 2: Convert to fraction form
    82,056,522.40/123,084,783.60 = 78,277,386.40/x
  3. Step 3: Cross multiply
    82,056,522.40x = 123,084,783.60 × 78,277,386.40
  4. Step 4: Simplify right side
    82,056,522.40x = 9,634,755,165,817,584
  5. Step 5: Solve for x
    x = 9,634,755,165,817,584/82,056,522.40
  6. Step 6: Final answer
    x = 117,416,079.60

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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.