Home / 919,217,941.22-1,268,912,172.41-617,977,960.94

Finding the Fourth Proportional to 919,217,941.22, 1,268,912,172.41 and 617,977,960.94

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Solution

The fourth proportional to 919,217,941.22, 1,268,912,172.41 and 617,977,960.94 is: 853,072,728.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,217,941.22 : 1,268,912,172.41 = 617,977,960.94 : x
  2. Step 2: Convert to fraction form
    919,217,941.22/1,268,912,172.41 = 617,977,960.94/x
  3. Step 3: Cross multiply
    919,217,941.22x = 1,268,912,172.41 × 617,977,960.94
  4. Step 4: Simplify right side
    919,217,941.22x = 784,159,756,908,443,008
  5. Step 5: Solve for x
    x = 784,159,756,908,443,008/919,217,941.22
  6. Step 6: Final answer
    x = 853,072,728.18

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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.