Home / 659,736,613.60-989,125,113.18-309,802,363.88

Finding the Fourth Proportional to 659,736,613.60, 989,125,113.18 and 309,802,363.88

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Solution

The fourth proportional to 659,736,613.60, 989,125,113.18 and 309,802,363.88 is: 464,478,235.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,736,613.60 : 989,125,113.18 = 309,802,363.88 : x
  2. Step 2: Convert to fraction form
    659,736,613.60/989,125,113.18 = 309,802,363.88/x
  3. Step 3: Cross multiply
    659,736,613.60x = 989,125,113.18 × 309,802,363.88
  4. Step 4: Simplify right side
    659,736,613.60x = 306,433,298,236,236,544
  5. Step 5: Solve for x
    x = 306,433,298,236,236,544/659,736,613.60
  6. Step 6: Final answer
    x = 464,478,235.59

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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.