Home / 103,423,578.90-142,725,501.66-57,015,493.62

Finding the Fourth Proportional to 103,423,578.90, 142,725,501.66 and 57,015,493.62

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Solution

The fourth proportional to 103,423,578.90, 142,725,501.66 and 57,015,493.62 is: 78,681,911.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,423,578.90 : 142,725,501.66 = 57,015,493.62 : x
  2. Step 2: Convert to fraction form
    103,423,578.90/142,725,501.66 = 57,015,493.62/x
  3. Step 3: Cross multiply
    103,423,578.90x = 142,725,501.66 × 57,015,493.62
  4. Step 4: Simplify right side
    103,423,578.90x = 8,137,564,929,307,029
  5. Step 5: Solve for x
    x = 8,137,564,929,307,029/103,423,578.90
  6. Step 6: Final answer
    x = 78,681,911.96

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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.