Home / 645,234,116,625.65-967,374,034,780.80-390,206,803,237.28

Finding the Fourth Proportional to 645,234,116,625.65, 967,374,034,780.80 and 390,206,803,237.28

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Solution

The fourth proportional to 645,234,116,625.65, 967,374,034,780.80 and 390,206,803,237.28 is: 585,021,653,257.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,234,116,625.65 : 967,374,034,780.80 = 390,206,803,237.28 : x
  2. Step 2: Convert to fraction form
    645,234,116,625.65/967,374,034,780.80 = 390,206,803,237.28/x
  3. Step 3: Cross multiply
    645,234,116,625.65x = 967,374,034,780.80 × 390,206,803,237.28
  4. Step 4: Simplify right side
    645,234,116,625.65x = 377,475,929,646,565,307,711,488
  5. Step 5: Solve for x
    x = 377,475,929,646,565,307,711,488/645,234,116,625.65
  6. Step 6: Final answer
    x = 585,021,653,257.63

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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.