Home / 1,536,185,144.09-2,119,942,178.76-831,337,187.77

Finding the Fourth Proportional to 1,536,185,144.09, 2,119,942,178.76 and 831,337,187.77

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Solution

The fourth proportional to 1,536,185,144.09, 2,119,942,178.76 and 831,337,187.77 is: 1,147,248,934.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536,185,144.09 : 2,119,942,178.76 = 831,337,187.77 : x
  2. Step 2: Convert to fraction form
    1,536,185,144.09/2,119,942,178.76 = 831,337,187.77/x
  3. Step 3: Cross multiply
    1,536,185,144.09x = 2,119,942,178.76 × 831,337,187.77
  4. Step 4: Simplify right side
    1,536,185,144.09x = 1,762,386,769,131,153,920
  5. Step 5: Solve for x
    x = 1,762,386,769,131,153,920/1,536,185,144.09
  6. Step 6: Final answer
    x = 1,147,248,934.09

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Double scale
Find fourth proportional to 1,536,185,145.09, 2,119,942,180.14 and 831,337,188.77
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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.