Home / 856,661,945.08-1,182,555,099.42-578,580,127.72

Finding the Fourth Proportional to 856,661,945.08, 1,182,555,099.42 and 578,580,127.72

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Solution

The fourth proportional to 856,661,945.08, 1,182,555,099.42 and 578,580,127.72 is: 798,684,807.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,661,945.08 : 1,182,555,099.42 = 578,580,127.72 : x
  2. Step 2: Convert to fraction form
    856,661,945.08/1,182,555,099.42 = 578,580,127.72/x
  3. Step 3: Cross multiply
    856,661,945.08x = 1,182,555,099.42 × 578,580,127.72
  4. Step 4: Simplify right side
    856,661,945.08x = 684,202,880,458,360,960
  5. Step 5: Solve for x
    x = 684,202,880,458,360,960/856,661,945.08
  6. Step 6: Final answer
    x = 798,684,807.22

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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.