Home / 958,313,621.70-1,436,478,409.35-520,689,672.90

Finding the Fourth Proportional to 958,313,621.70, 1,436,478,409.35 and 520,689,672.90

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Solution

The fourth proportional to 958,313,621.70, 1,436,478,409.35 and 520,689,672.90 is: 780,495,503.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,313,621.70 : 1,436,478,409.35 = 520,689,672.90 : x
  2. Step 2: Convert to fraction form
    958,313,621.70/1,436,478,409.35 = 520,689,672.90/x
  3. Step 3: Cross multiply
    958,313,621.70x = 1,436,478,409.35 × 520,689,672.90
  4. Step 4: Simplify right side
    958,313,621.70x = 747,959,473,092,363,776
  5. Step 5: Solve for x
    x = 747,959,473,092,363,776/958,313,621.70
  6. Step 6: Final answer
    x = 780,495,503.93

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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.