Home / 521,631,352.72-719,867,466.32-286,677,743.68

Finding the Fourth Proportional to 521,631,352.72, 719,867,466.32 and 286,677,743.68

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Solution

The fourth proportional to 521,631,352.72, 719,867,466.32 and 286,677,743.68 is: 395,624,189.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,631,352.72 : 719,867,466.32 = 286,677,743.68 : x
  2. Step 2: Convert to fraction form
    521,631,352.72/719,867,466.32 = 286,677,743.68/x
  3. Step 3: Cross multiply
    521,631,352.72x = 719,867,466.32 × 286,677,743.68
  4. Step 4: Simplify right side
    521,631,352.72x = 206,369,980,993,256,000
  5. Step 5: Solve for x
    x = 206,369,980,993,256,000/521,631,352.72
  6. Step 6: Final answer
    x = 395,624,189.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.