Home / 465,418,688.40-698,128,032.60-458,616,243.60

Finding the Fourth Proportional to 465,418,688.40, 698,128,032.60 and 458,616,243.60

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Solution

The fourth proportional to 465,418,688.40, 698,128,032.60 and 458,616,243.60 is: 687,924,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,418,688.40 : 698,128,032.60 = 458,616,243.60 : x
  2. Step 2: Convert to fraction form
    465,418,688.40/698,128,032.60 = 458,616,243.60/x
  3. Step 3: Cross multiply
    465,418,688.40x = 698,128,032.60 × 458,616,243.60
  4. Step 4: Simplify right side
    465,418,688.40x = 320,172,855,862,870,400
  5. Step 5: Solve for x
    x = 320,172,855,862,870,400/465,418,688.40
  6. Step 6: Final answer
    x = 687,924,365.40

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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.