Home / 486,496,489.72-729,838,622.50-158,883,927.98

Finding the Fourth Proportional to 486,496,489.72, 729,838,622.50 and 158,883,927.98

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Solution

The fourth proportional to 486,496,489.72, 729,838,622.50 and 158,883,927.98 is: 238,356,554.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,496,489.72 : 729,838,622.50 = 158,883,927.98 : x
  2. Step 2: Convert to fraction form
    486,496,489.72/729,838,622.50 = 158,883,927.98/x
  3. Step 3: Cross multiply
    486,496,489.72x = 729,838,622.50 × 158,883,927.98
  4. Step 4: Simplify right side
    486,496,489.72x = 115,959,627,134,312,400
  5. Step 5: Solve for x
    x = 115,959,627,134,312,400/486,496,489.72
  6. Step 6: Final answer
    x = 238,356,554.64

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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.