Home / 525,271,442.88-724,852,072.80-290,309,952.96

Finding the Fourth Proportional to 525,271,442.88, 724,852,072.80 and 290,309,952.96

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Solution

The fourth proportional to 525,271,442.88, 724,852,072.80 and 290,309,952.96 is: 400,615,289.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,271,442.88 : 724,852,072.80 = 290,309,952.96 : x
  2. Step 2: Convert to fraction form
    525,271,442.88/724,852,072.80 = 290,309,952.96/x
  3. Step 3: Cross multiply
    525,271,442.88x = 724,852,072.80 × 290,309,952.96
  4. Step 4: Simplify right side
    525,271,442.88x = 210,431,771,157,526,464
  5. Step 5: Solve for x
    x = 210,431,771,157,526,464/525,271,442.88
  6. Step 6: Final answer
    x = 400,615,289.50

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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.