Home / 784,883,867.72-1,083,164,284.56-450,417,586.94

Finding the Fourth Proportional to 784,883,867.72, 1,083,164,284.56 and 450,417,586.94

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Solution

The fourth proportional to 784,883,867.72, 1,083,164,284.56 and 450,417,586.94 is: 621,590,356.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,883,867.72 : 1,083,164,284.56 = 450,417,586.94 : x
  2. Step 2: Convert to fraction form
    784,883,867.72/1,083,164,284.56 = 450,417,586.94/x
  3. Step 3: Cross multiply
    784,883,867.72x = 1,083,164,284.56 × 450,417,586.94
  4. Step 4: Simplify right side
    784,883,867.72x = 487,876,243,311,106,688
  5. Step 5: Solve for x
    x = 487,876,243,311,106,688/784,883,867.72
  6. Step 6: Final answer
    x = 621,590,356.71

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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.