Home / 811,986,679.58-1,120,349,567.61-459,562,670.28

Finding the Fourth Proportional to 811,986,679.58, 1,120,349,567.61 and 459,562,670.28

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Solution

The fourth proportional to 811,986,679.58, 1,120,349,567.61 and 459,562,670.28 is: 634,087,789.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,986,679.58 : 1,120,349,567.61 = 459,562,670.28 : x
  2. Step 2: Convert to fraction form
    811,986,679.58/1,120,349,567.61 = 459,562,670.28/x
  3. Step 3: Cross multiply
    811,986,679.58x = 1,120,349,567.61 × 459,562,670.28
  4. Step 4: Simplify right side
    811,986,679.58x = 514,870,838,937,894,912
  5. Step 5: Solve for x
    x = 514,870,838,937,894,912/811,986,679.58
  6. Step 6: Final answer
    x = 634,087,789.73

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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.