Home / 778,312,927.28-1,074,039,762.48-465,219,761.96

Finding the Fourth Proportional to 778,312,927.28, 1,074,039,762.48 and 465,219,761.96

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Solution

The fourth proportional to 778,312,927.28, 1,074,039,762.48 and 465,219,761.96 is: 641,984,098.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,312,927.28 : 1,074,039,762.48 = 465,219,761.96 : x
  2. Step 2: Convert to fraction form
    778,312,927.28/1,074,039,762.48 = 465,219,761.96/x
  3. Step 3: Cross multiply
    778,312,927.28x = 1,074,039,762.48 × 465,219,761.96
  4. Step 4: Simplify right side
    778,312,927.28x = 499,664,522,636,520,512
  5. Step 5: Solve for x
    x = 499,664,522,636,520,512/778,312,927.28
  6. Step 6: Final answer
    x = 641,984,098.07

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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.