Home / 499,678,898.95-689,578,428.90-276,660,584.83

Finding the Fourth Proportional to 499,678,898.95, 689,578,428.90 and 276,660,584.83

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Solution

The fourth proportional to 499,678,898.95, 689,578,428.90 and 276,660,584.83 is: 381,803,537.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,678,898.95 : 689,578,428.90 = 276,660,584.83 : x
  2. Step 2: Convert to fraction form
    499,678,898.95/689,578,428.90 = 276,660,584.83/x
  3. Step 3: Cross multiply
    499,678,898.95x = 689,578,428.90 × 276,660,584.83
  4. Step 4: Simplify right side
    499,678,898.95x = 190,779,171,425,626,560
  5. Step 5: Solve for x
    x = 190,779,171,425,626,560/499,678,898.95
  6. Step 6: Final answer
    x = 381,803,537.89

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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.