Home / 1,307,016,208.86-1,803,682,652.31-712,300,834.14

Finding the Fourth Proportional to 1,307,016,208.86, 1,803,682,652.31 and 712,300,834.14

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Solution

The fourth proportional to 1,307,016,208.86, 1,803,682,652.31 and 712,300,834.14 is: 982,975,305.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,016,208.86 : 1,803,682,652.31 = 712,300,834.14 : x
  2. Step 2: Convert to fraction form
    1,307,016,208.86/1,803,682,652.31 = 712,300,834.14/x
  3. Step 3: Cross multiply
    1,307,016,208.86x = 1,803,682,652.31 × 712,300,834.14
  4. Step 4: Simplify right side
    1,307,016,208.86x = 1,284,764,657,764,260,608
  5. Step 5: Solve for x
    x = 1,284,764,657,764,260,608/1,307,016,208.86
  6. Step 6: Final answer
    x = 982,975,305.93

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Double scale
Find fourth proportional to 1,307,016,209.86, 1,803,682,653.69 and 712,300,835.14
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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.