Home / 1,321,381,072.90-1,822,989,780.72-756,564,093.67

Finding the Fourth Proportional to 1,321,381,072.90, 1,822,989,780.72 and 756,564,093.67

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Solution

The fourth proportional to 1,321,381,072.90, 1,822,989,780.72 and 756,564,093.67 is: 1,043,762,953.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,381,072.90 : 1,822,989,780.72 = 756,564,093.67 : x
  2. Step 2: Convert to fraction form
    1,321,381,072.90/1,822,989,780.72 = 756,564,093.67/x
  3. Step 3: Cross multiply
    1,321,381,072.90x = 1,822,989,780.72 × 756,564,093.67
  4. Step 4: Simplify right side
    1,321,381,072.90x = 1,379,208,611,220,098,816
  5. Step 5: Solve for x
    x = 1,379,208,611,220,098,816/1,321,381,072.90
  6. Step 6: Final answer
    x = 1,043,762,953.40

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1.5x scale

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.