Home / 755,520,560.78-1,042,695,956.68-454,203,421.34

Finding the Fourth Proportional to 755,520,560.78, 1,042,695,956.68 and 454,203,421.34

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Solution

The fourth proportional to 755,520,560.78, 1,042,695,956.68 and 454,203,421.34 is: 626,847,362.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,520,560.78 : 1,042,695,956.68 = 454,203,421.34 : x
  2. Step 2: Convert to fraction form
    755,520,560.78/1,042,695,956.68 = 454,203,421.34/x
  3. Step 3: Cross multiply
    755,520,560.78x = 1,042,695,956.68 × 454,203,421.34
  4. Step 4: Simplify right side
    755,520,560.78x = 473,596,070,935,091,392
  5. Step 5: Solve for x
    x = 473,596,070,935,091,392/755,520,560.78
  6. Step 6: Final answer
    x = 626,847,362.63

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1.5x scale

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.