Home / 853,983,640.10-1,280,975,460.15-681,796,756.10

Finding the Fourth Proportional to 853,983,640.10, 1,280,975,460.15 and 681,796,756.10

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Solution

The fourth proportional to 853,983,640.10, 1,280,975,460.15 and 681,796,756.10 is: 1,022,695,134.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,983,640.10 : 1,280,975,460.15 = 681,796,756.10 : x
  2. Step 2: Convert to fraction form
    853,983,640.10/1,280,975,460.15 = 681,796,756.10/x
  3. Step 3: Cross multiply
    853,983,640.10x = 1,280,975,460.15 × 681,796,756.10
  4. Step 4: Simplify right side
    853,983,640.10x = 873,364,913,373,974,912
  5. Step 5: Solve for x
    x = 873,364,913,373,974,912/853,983,640.10
  6. Step 6: Final answer
    x = 1,022,695,134.15

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Double scale
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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.