Home / 776,934,830.40-1,165,215,621.60-448,700,539.20

Finding the Fourth Proportional to 776,934,830.40, 1,165,215,621.60 and 448,700,539.20

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Solution

The fourth proportional to 776,934,830.40, 1,165,215,621.60 and 448,700,539.20 is: 672,943,028.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,934,830.40 : 1,165,215,621.60 = 448,700,539.20 : x
  2. Step 2: Convert to fraction form
    776,934,830.40/1,165,215,621.60 = 448,700,539.20/x
  3. Step 3: Cross multiply
    776,934,830.40x = 1,165,215,621.60 × 448,700,539.20
  4. Step 4: Simplify right side
    776,934,830.40x = 522,832,877,696,183,104
  5. Step 5: Solve for x
    x = 522,832,877,696,183,104/776,934,830.40
  6. Step 6: Final answer
    x = 672,943,028.47

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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.