Home / 372,277,361.40-558,416,042.10-99,648,128.40

Finding the Fourth Proportional to 372,277,361.40, 558,416,042.10 and 99,648,128.40

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Solution

The fourth proportional to 372,277,361.40, 558,416,042.10 and 99,648,128.40 is: 149,472,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,277,361.40 : 558,416,042.10 = 99,648,128.40 : x
  2. Step 2: Convert to fraction form
    372,277,361.40/558,416,042.10 = 99,648,128.40/x
  3. Step 3: Cross multiply
    372,277,361.40x = 558,416,042.10 × 99,648,128.40
  4. Step 4: Simplify right side
    372,277,361.40x = 55,645,113,463,800,608
  5. Step 5: Solve for x
    x = 55,645,113,463,800,608/372,277,361.40
  6. Step 6: Final answer
    x = 149,472,192.60

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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.