Home / 1,687,338,742.40-2,531,008,113.60-460,631,196.80

Finding the Fourth Proportional to 1,687,338,742.40, 2,531,008,113.60 and 460,631,196.80

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Solution

The fourth proportional to 1,687,338,742.40, 2,531,008,113.60 and 460,631,196.80 is: 690,946,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,338,742.40 : 2,531,008,113.60 = 460,631,196.80 : x
  2. Step 2: Convert to fraction form
    1,687,338,742.40/2,531,008,113.60 = 460,631,196.80/x
  3. Step 3: Cross multiply
    1,687,338,742.40x = 2,531,008,113.60 × 460,631,196.80
  4. Step 4: Simplify right side
    1,687,338,742.40x = 1,165,861,296,478,078,464
  5. Step 5: Solve for x
    x = 1,165,861,296,478,078,464/1,687,338,742.40
  6. Step 6: Final answer
    x = 690,946,795.20

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Double scale
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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.