Home / 421,415,758,487.35-581,554,177,114.70-228,727,971,139.01

Finding the Fourth Proportional to 421,415,758,487.35, 581,554,177,114.70 and 228,727,971,139.01

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Solution

The fourth proportional to 421,415,758,487.35, 581,554,177,114.70 and 228,727,971,139.01 is: 315,644,833,777.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,415,758,487.35 : 581,554,177,114.70 = 228,727,971,139.01 : x
  2. Step 2: Convert to fraction form
    421,415,758,487.35/581,554,177,114.70 = 228,727,971,139.01/x
  3. Step 3: Cross multiply
    421,415,758,487.35x = 581,554,177,114.70 × 228,727,971,139.01
  4. Step 4: Simplify right side
    421,415,758,487.35x = 133,017,707,038,861,804,175,360
  5. Step 5: Solve for x
    x = 133,017,707,038,861,804,175,360/421,415,758,487.35
  6. Step 6: Final answer
    x = 315,644,833,777.27

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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.