Home / 628,992,030.30-943,488,045.45-445,326,020.70

Finding the Fourth Proportional to 628,992,030.30, 943,488,045.45 and 445,326,020.70

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Solution

The fourth proportional to 628,992,030.30, 943,488,045.45 and 445,326,020.70 is: 667,989,031.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,992,030.30 : 943,488,045.45 = 445,326,020.70 : x
  2. Step 2: Convert to fraction form
    628,992,030.30/943,488,045.45 = 445,326,020.70/x
  3. Step 3: Cross multiply
    628,992,030.30x = 943,488,045.45 × 445,326,020.70
  4. Step 4: Simplify right side
    628,992,030.30x = 420,159,776,858,269,248
  5. Step 5: Solve for x
    x = 420,159,776,858,269,248/628,992,030.30
  6. Step 6: Final answer
    x = 667,989,031.05

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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.