Home / 397,370,538.40-596,735,948.40-215,972,010.40

Finding the Fourth Proportional to 397,370,538.40, 596,735,948.40 and 215,972,010.40

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Solution

The fourth proportional to 397,370,538.40, 596,735,948.40 and 215,972,010.40 is: 324,327,674.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,370,538.40 : 596,735,948.40 = 215,972,010.40 : x
  2. Step 2: Convert to fraction form
    397,370,538.40/596,735,948.40 = 215,972,010.40/x
  3. Step 3: Cross multiply
    397,370,538.40x = 596,735,948.40 × 215,972,010.40
  4. Step 4: Simplify right side
    397,370,538.40x = 128,878,262,453,898,656
  5. Step 5: Solve for x
    x = 128,878,262,453,898,656/397,370,538.40
  6. Step 6: Final answer
    x = 324,327,674.05

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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.