Home / 550,530,378.61-759,731,880.15-299,636,569.40

Finding the Fourth Proportional to 550,530,378.61, 759,731,880.15 and 299,636,569.40

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Solution

The fourth proportional to 550,530,378.61, 759,731,880.15 and 299,636,569.40 is: 413,498,442.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,530,378.61 : 759,731,880.15 = 299,636,569.40 : x
  2. Step 2: Convert to fraction form
    550,530,378.61/759,731,880.15 = 299,636,569.40/x
  3. Step 3: Cross multiply
    550,530,378.61x = 759,731,880.15 × 299,636,569.40
  4. Step 4: Simplify right side
    550,530,378.61x = 227,643,454,228,159,264
  5. Step 5: Solve for x
    x = 227,643,454,228,159,264/550,530,378.61
  6. Step 6: Final answer
    x = 413,498,442.73

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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.