Home / 141,709,801.20-212,430,954.60-76,918,095.60

Finding the Fourth Proportional to 141,709,801.20, 212,430,954.60 and 76,918,095.60

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Solution

The fourth proportional to 141,709,801.20, 212,430,954.60 and 76,918,095.60 is: 115,304,547.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,709,801.20 : 212,430,954.60 = 76,918,095.60 : x
  2. Step 2: Convert to fraction form
    141,709,801.20/212,430,954.60 = 76,918,095.60/x
  3. Step 3: Cross multiply
    141,709,801.20x = 212,430,954.60 × 76,918,095.60
  4. Step 4: Simplify right side
    141,709,801.20x = 16,339,784,474,322,058
  5. Step 5: Solve for x
    x = 16,339,784,474,322,058/141,709,801.20
  6. Step 6: Final answer
    x = 115,304,547.29

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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.