Home / 689,847,543.20-1,034,771,314.80-344,854,416.80

Finding the Fourth Proportional to 689,847,543.20, 1,034,771,314.80 and 344,854,416.80

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Solution

The fourth proportional to 689,847,543.20, 1,034,771,314.80 and 344,854,416.80 is: 517,281,625.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,847,543.20 : 1,034,771,314.80 = 344,854,416.80 : x
  2. Step 2: Convert to fraction form
    689,847,543.20/1,034,771,314.80 = 344,854,416.80/x
  3. Step 3: Cross multiply
    689,847,543.20x = 1,034,771,314.80 × 344,854,416.80
  4. Step 4: Simplify right side
    689,847,543.20x = 356,845,458,286,723,200
  5. Step 5: Solve for x
    x = 356,845,458,286,723,200/689,847,543.20
  6. Step 6: Final answer
    x = 517,281,625.20

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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.