Home / 1,121,097,060.42-1,681,639,473.54-457,108,474.88

Finding the Fourth Proportional to 1,121,097,060.42, 1,681,639,473.54 and 457,108,474.88

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Solution

The fourth proportional to 1,121,097,060.42, 1,681,639,473.54 and 457,108,474.88 is: 685,660,218.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,097,060.42 : 1,681,639,473.54 = 457,108,474.88 : x
  2. Step 2: Convert to fraction form
    1,121,097,060.42/1,681,639,473.54 = 457,108,474.88/x
  3. Step 3: Cross multiply
    1,121,097,060.42x = 1,681,639,473.54 × 457,108,474.88
  4. Step 4: Simplify right side
    1,121,097,060.42x = 768,691,655,047,875,456
  5. Step 5: Solve for x
    x = 768,691,655,047,875,456/1,121,097,060.42
  6. Step 6: Final answer
    x = 685,660,218.18

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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.