Home / 558,529,890.54-770,776,447.50-307,643,188.20

Finding the Fourth Proportional to 558,529,890.54, 770,776,447.50 and 307,643,188.20

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Solution

The fourth proportional to 558,529,890.54, 770,776,447.50 and 307,643,188.20 is: 424,550,463.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,529,890.54 : 770,776,447.50 = 307,643,188.20 : x
  2. Step 2: Convert to fraction form
    558,529,890.54/770,776,447.50 = 307,643,188.20/x
  3. Step 3: Cross multiply
    558,529,890.54x = 770,776,447.50 × 307,643,188.20
  4. Step 4: Simplify right side
    558,529,890.54x = 237,124,123,698,369,920
  5. Step 5: Solve for x
    x = 237,124,123,698,369,920/558,529,890.54
  6. Step 6: Final answer
    x = 424,550,463.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.