Home / 916,186,739.05-1,264,300,469.40-519,701,217.13

Finding the Fourth Proportional to 916,186,739.05, 1,264,300,469.40 and 519,701,217.13

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Solution

The fourth proportional to 916,186,739.05, 1,264,300,469.40 and 519,701,217.13 is: 717,166,560.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,186,739.05 : 1,264,300,469.40 = 519,701,217.13 : x
  2. Step 2: Convert to fraction form
    916,186,739.05/1,264,300,469.40 = 519,701,217.13/x
  3. Step 3: Cross multiply
    916,186,739.05x = 1,264,300,469.40 × 519,701,217.13
  4. Step 4: Simplify right side
    916,186,739.05x = 657,058,492,765,210,368
  5. Step 5: Solve for x
    x = 657,058,492,765,210,368/916,186,739.05
  6. Step 6: Final answer
    x = 717,166,560.88

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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.