Home / 399,744,007.60-599,616,011.40-308,932,769.20

Finding the Fourth Proportional to 399,744,007.60, 599,616,011.40 and 308,932,769.20

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Solution

The fourth proportional to 399,744,007.60, 599,616,011.40 and 308,932,769.20 is: 463,399,153.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,744,007.60 : 599,616,011.40 = 308,932,769.20 : x
  2. Step 2: Convert to fraction form
    399,744,007.60/599,616,011.40 = 308,932,769.20/x
  3. Step 3: Cross multiply
    399,744,007.60x = 599,616,011.40 × 308,932,769.20
  4. Step 4: Simplify right side
    399,744,007.60x = 185,241,034,858,460,768
  5. Step 5: Solve for x
    x = 185,241,034,858,460,768/399,744,007.60
  6. Step 6: Final answer
    x = 463,399,153.80

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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.