Home / 258,047,672.40-387,071,508.60-76,294,850.40

Finding the Fourth Proportional to 258,047,672.40, 387,071,508.60 and 76,294,850.40

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Solution

The fourth proportional to 258,047,672.40, 387,071,508.60 and 76,294,850.40 is: 114,442,275.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,047,672.40 : 387,071,508.60 = 76,294,850.40 : x
  2. Step 2: Convert to fraction form
    258,047,672.40/387,071,508.60 = 76,294,850.40/x
  3. Step 3: Cross multiply
    258,047,672.40x = 387,071,508.60 × 76,294,850.40
  4. Step 4: Simplify right side
    258,047,672.40x = 29,531,562,842,739,316
  5. Step 5: Solve for x
    x = 29,531,562,842,739,316/258,047,672.40
  6. Step 6: Final answer
    x = 114,442,275.60

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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.