Home / 427,373,936,462.61-641,081,520,783.05-140,525,642,113.47

Finding the Fourth Proportional to 427,373,936,462.61, 641,081,520,783.05 and 140,525,642,113.47

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Solution

The fourth proportional to 427,373,936,462.61, 641,081,520,783.05 and 140,525,642,113.47 is: 210,795,241,985.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,373,936,462.61 : 641,081,520,783.05 = 140,525,642,113.47 : x
  2. Step 2: Convert to fraction form
    427,373,936,462.61/641,081,520,783.05 = 140,525,642,113.47/x
  3. Step 3: Cross multiply
    427,373,936,462.61x = 641,081,520,783.05 × 140,525,642,113.47
  4. Step 4: Simplify right side
    427,373,936,462.61x = 90,088,392,355,117,969,440,768
  5. Step 5: Solve for x
    x = 90,088,392,355,117,969,440,768/427,373,936,462.61
  6. Step 6: Final answer
    x = 210,795,241,985.94

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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.