Home / 660,457,316.40-990,685,974.60-272,080,233.60

Finding the Fourth Proportional to 660,457,316.40, 990,685,974.60 and 272,080,233.60

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Solution

The fourth proportional to 660,457,316.40, 990,685,974.60 and 272,080,233.60 is: 408,120,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,457,316.40 : 990,685,974.60 = 272,080,233.60 : x
  2. Step 2: Convert to fraction form
    660,457,316.40/990,685,974.60 = 272,080,233.60/x
  3. Step 3: Cross multiply
    660,457,316.40x = 990,685,974.60 × 272,080,233.60
  4. Step 4: Simplify right side
    660,457,316.40x = 269,546,071,393,411,712
  5. Step 5: Solve for x
    x = 269,546,071,393,411,712/660,457,316.40
  6. Step 6: Final answer
    x = 408,120,350.40

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1.5x scale

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.