Home / 558,153,936-770,252,431.68-310,693,748.76

Finding the Fourth Proportional to 558,153,936, 770,252,431.68 and 310,693,748.76

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Solution

The fourth proportional to 558,153,936, 770,252,431.68 and 310,693,748.76 is: 428,757,373.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,153,936 : 770,252,431.68 = 310,693,748.76 : x
  2. Step 2: Convert to fraction form
    558,153,936/770,252,431.68 = 310,693,748.76/x
  3. Step 3: Cross multiply
    558,153,936x = 770,252,431.68 × 310,693,748.76
  4. Step 4: Simplify right side
    558,153,936x = 239,312,615,490,164,960
  5. Step 5: Solve for x
    x = 239,312,615,490,164,960/558,153,936
  6. Step 6: Final answer
    x = 428,757,373.29

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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.