Home / 660,038,005.80-990,057,008.70-332,386,914.60

Finding the Fourth Proportional to 660,038,005.80, 990,057,008.70 and 332,386,914.60

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Solution

The fourth proportional to 660,038,005.80, 990,057,008.70 and 332,386,914.60 is: 498,580,371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,038,005.80 : 990,057,008.70 = 332,386,914.60 : x
  2. Step 2: Convert to fraction form
    660,038,005.80/990,057,008.70 = 332,386,914.60/x
  3. Step 3: Cross multiply
    660,038,005.80x = 990,057,008.70 × 332,386,914.60
  4. Step 4: Simplify right side
    660,038,005.80x = 329,081,994,399,898,368
  5. Step 5: Solve for x
    x = 329,081,994,399,898,368/660,038,005.80
  6. Step 6: Final answer
    x = 498,580,371.90

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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.