Home / 837,686,629.50-1,156,133,225.38-636,412,292.67

Finding the Fourth Proportional to 837,686,629.50, 1,156,133,225.38 and 636,412,292.67

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Solution

The fourth proportional to 837,686,629.50, 1,156,133,225.38 and 636,412,292.67 is: 878,344,443.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,686,629.50 : 1,156,133,225.38 = 636,412,292.67 : x
  2. Step 2: Convert to fraction form
    837,686,629.50/1,156,133,225.38 = 636,412,292.67/x
  3. Step 3: Cross multiply
    837,686,629.50x = 1,156,133,225.38 × 636,412,292.67
  4. Step 4: Simplify right side
    837,686,629.50x = 735,777,396,596,047,616
  5. Step 5: Solve for x
    x = 735,777,396,596,047,616/837,686,629.50
  6. Step 6: Final answer
    x = 878,344,443.72

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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.