Home / 863,812,805.67-1,296,445,905.63-809,331,737.94

Finding the Fourth Proportional to 863,812,805.67, 1,296,445,905.63 and 809,331,737.94

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Solution

The fourth proportional to 863,812,805.67, 1,296,445,905.63 and 809,331,737.94 is: 1,214,678,470.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,812,805.67 : 1,296,445,905.63 = 809,331,737.94 : x
  2. Step 2: Convert to fraction form
    863,812,805.67/1,296,445,905.63 = 809,331,737.94/x
  3. Step 3: Cross multiply
    863,812,805.67x = 1,296,445,905.63 × 809,331,737.94
  4. Step 4: Simplify right side
    863,812,805.67x = 1,049,254,817,948,725,248
  5. Step 5: Solve for x
    x = 1,049,254,817,948,725,248/863,812,805.67
  6. Step 6: Final answer
    x = 1,214,678,470.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.