Home / 862,584,078.40-1,293,876,117.60-345,385,697.20

Finding the Fourth Proportional to 862,584,078.40, 1,293,876,117.60 and 345,385,697.20

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Solution

The fourth proportional to 862,584,078.40, 1,293,876,117.60 and 345,385,697.20 is: 518,078,545.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,584,078.40 : 1,293,876,117.60 = 345,385,697.20 : x
  2. Step 2: Convert to fraction form
    862,584,078.40/1,293,876,117.60 = 345,385,697.20/x
  3. Step 3: Cross multiply
    862,584,078.40x = 1,293,876,117.60 × 345,385,697.20
  4. Step 4: Simplify right side
    862,584,078.40x = 446,886,304,967,705,152
  5. Step 5: Solve for x
    x = 446,886,304,967,705,152/862,584,078.40
  6. Step 6: Final answer
    x = 518,078,545.80

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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.