Home / 1,091,257,013.20-1,638,050,775.48-469,779,842

Finding the Fourth Proportional to 1,091,257,013.20, 1,638,050,775.48 and 469,779,842

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Solution

The fourth proportional to 1,091,257,013.20, 1,638,050,775.48 and 469,779,842 is: 705,171,398.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,257,013.20 : 1,638,050,775.48 = 469,779,842 : x
  2. Step 2: Convert to fraction form
    1,091,257,013.20/1,638,050,775.48 = 469,779,842/x
  3. Step 3: Cross multiply
    1,091,257,013.20x = 1,638,050,775.48 × 469,779,842
  4. Step 4: Simplify right side
    1,091,257,013.20x = 769,523,234,492,971,904
  5. Step 5: Solve for x
    x = 769,523,234,492,971,904/1,091,257,013.20
  6. Step 6: Final answer
    x = 705,171,398.84

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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.