Home / 397,370,645.40-596,736,108.90-215,972,117.40

Finding the Fourth Proportional to 397,370,645.40, 596,736,108.90 and 215,972,117.40

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Solution

The fourth proportional to 397,370,645.40, 596,736,108.90 and 215,972,117.40 is: 324,327,834.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,370,645.40 : 596,736,108.90 = 215,972,117.40 : x
  2. Step 2: Convert to fraction form
    397,370,645.40/596,736,108.90 = 215,972,117.40/x
  3. Step 3: Cross multiply
    397,370,645.40x = 596,736,108.90 × 215,972,117.40
  4. Step 4: Simplify right side
    397,370,645.40x = 128,878,360,968,169,984
  5. Step 5: Solve for x
    x = 128,878,360,968,169,984/397,370,645.40
  6. Step 6: Final answer
    x = 324,327,834.63

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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.