Home / 1,297,479,732.96-1,790,566,783.92-710,768,920.80

Finding the Fourth Proportional to 1,297,479,732.96, 1,790,566,783.92 and 710,768,920.80

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Solution

The fourth proportional to 1,297,479,732.96, 1,790,566,783.92 and 710,768,920.80 is: 980,885,626.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,479,732.96 : 1,790,566,783.92 = 710,768,920.80 : x
  2. Step 2: Convert to fraction form
    1,297,479,732.96/1,790,566,783.92 = 710,768,920.80/x
  3. Step 3: Cross multiply
    1,297,479,732.96x = 1,790,566,783.92 × 710,768,920.80
  4. Step 4: Simplify right side
    1,297,479,732.96x = 1,272,679,220,627,145,216
  5. Step 5: Solve for x
    x = 1,272,679,220,627,145,216/1,297,479,732.96
  6. Step 6: Final answer
    x = 980,885,626.42

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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.