Home / 680,868,459.60-1,021,302,689.40-448,416,166.20

Finding the Fourth Proportional to 680,868,459.60, 1,021,302,689.40 and 448,416,166.20

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Solution

The fourth proportional to 680,868,459.60, 1,021,302,689.40 and 448,416,166.20 is: 672,624,249.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,868,459.60 : 1,021,302,689.40 = 448,416,166.20 : x
  2. Step 2: Convert to fraction form
    680,868,459.60/1,021,302,689.40 = 448,416,166.20/x
  3. Step 3: Cross multiply
    680,868,459.60x = 1,021,302,689.40 × 448,416,166.20
  4. Step 4: Simplify right side
    680,868,459.60x = 457,968,636,510,497,344
  5. Step 5: Solve for x
    x = 457,968,636,510,497,344/680,868,459.60
  6. Step 6: Final answer
    x = 672,624,249.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.