Home / 488,950,306.72-674,926,934.76-290,711,328.58

Finding the Fourth Proportional to 488,950,306.72, 674,926,934.76 and 290,711,328.58

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Solution

The fourth proportional to 488,950,306.72, 674,926,934.76 and 290,711,328.58 is: 401,285,985.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,950,306.72 : 674,926,934.76 = 290,711,328.58 : x
  2. Step 2: Convert to fraction form
    488,950,306.72/674,926,934.76 = 290,711,328.58/x
  3. Step 3: Cross multiply
    488,950,306.72x = 674,926,934.76 × 290,711,328.58
  4. Step 4: Simplify right side
    488,950,306.72x = 196,208,905,898,506,560
  5. Step 5: Solve for x
    x = 196,208,905,898,506,560/488,950,306.72
  6. Step 6: Final answer
    x = 401,285,985.92

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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.