Home / 8,480,045.60-12,720,068.40-5,078,823.20

Finding the Fourth Proportional to 8,480,045.60, 12,720,068.40 and 5,078,823.20

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Solution

The fourth proportional to 8,480,045.60, 12,720,068.40 and 5,078,823.20 is: 7,618,234.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480,045.60 : 12,720,068.40 = 5,078,823.20 : x
  2. Step 2: Convert to fraction form
    8,480,045.60/12,720,068.40 = 5,078,823.20/x
  3. Step 3: Cross multiply
    8,480,045.60x = 12,720,068.40 × 5,078,823.20
  4. Step 4: Simplify right side
    8,480,045.60x = 64,602,978,495,506.88
  5. Step 5: Solve for x
    x = 64,602,978,495,506.88/8,480,045.60
  6. Step 6: Final answer
    x = 7,618,234.80

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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.