Home / 756,153,985.60-1,133,783,080.80-393,356,929.60

Finding the Fourth Proportional to 756,153,985.60, 1,133,783,080.80 and 393,356,929.60

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Solution

The fourth proportional to 756,153,985.60, 1,133,783,080.80 and 393,356,929.60 is: 589,802,394.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,153,985.60 : 1,133,783,080.80 = 393,356,929.60 : x
  2. Step 2: Convert to fraction form
    756,153,985.60/1,133,783,080.80 = 393,356,929.60/x
  3. Step 3: Cross multiply
    756,153,985.60x = 1,133,783,080.80 × 393,356,929.60
  4. Step 4: Simplify right side
    756,153,985.60x = 445,981,431,495,916,736
  5. Step 5: Solve for x
    x = 445,981,431,495,916,736/756,153,985.60
  6. Step 6: Final answer
    x = 589,802,394.74

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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.