Home / 345,958,958.40-518,938,437.60-115,851,566.40

Finding the Fourth Proportional to 345,958,958.40, 518,938,437.60 and 115,851,566.40

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Solution

The fourth proportional to 345,958,958.40, 518,938,437.60 and 115,851,566.40 is: 173,777,349.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,958,958.40 : 518,938,437.60 = 115,851,566.40 : x
  2. Step 2: Convert to fraction form
    345,958,958.40/518,938,437.60 = 115,851,566.40/x
  3. Step 3: Cross multiply
    345,958,958.40x = 518,938,437.60 × 115,851,566.40
  4. Step 4: Simplify right side
    345,958,958.40x = 60,119,830,861,128,664
  5. Step 5: Solve for x
    x = 60,119,830,861,128,664/345,958,958.40
  6. Step 6: Final answer
    x = 173,777,349.60

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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.