Home / 499,678,899.95-689,578,430.28-276,660,585.83

Finding the Fourth Proportional to 499,678,899.95, 689,578,430.28 and 276,660,585.83

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Solution

The fourth proportional to 499,678,899.95, 689,578,430.28 and 276,660,585.83 is: 381,803,539.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,678,899.95 : 689,578,430.28 = 276,660,585.83 : x
  2. Step 2: Convert to fraction form
    499,678,899.95/689,578,430.28 = 276,660,585.83/x
  3. Step 3: Cross multiply
    499,678,899.95x = 689,578,430.28 × 276,660,585.83
  4. Step 4: Simplify right side
    499,678,899.95x = 190,779,172,496,996,576
  5. Step 5: Solve for x
    x = 190,779,172,496,996,576/499,678,899.95
  6. Step 6: Final answer
    x = 381,803,539.27

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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.