Home / 213,036,352.60-319,554,528.90-76,704,021.40

Finding the Fourth Proportional to 213,036,352.60, 319,554,528.90 and 76,704,021.40

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Solution

The fourth proportional to 213,036,352.60, 319,554,528.90 and 76,704,021.40 is: 115,056,032.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,036,352.60 : 319,554,528.90 = 76,704,021.40 : x
  2. Step 2: Convert to fraction form
    213,036,352.60/319,554,528.90 = 76,704,021.40/x
  3. Step 3: Cross multiply
    213,036,352.60x = 319,554,528.90 × 76,704,021.40
  4. Step 4: Simplify right side
    213,036,352.60x = 24,511,117,423,212,520
  5. Step 5: Solve for x
    x = 24,511,117,423,212,520/213,036,352.60
  6. Step 6: Final answer
    x = 115,056,032.10

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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.