Home / 289,706,915.80-434,637,356.10-125,874,371.80

Finding the Fourth Proportional to 289,706,915.80, 434,637,356.10 and 125,874,371.80

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Solution

The fourth proportional to 289,706,915.80, 434,637,356.10 and 125,874,371.80 is: 188,845,005.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,706,915.80 : 434,637,356.10 = 125,874,371.80 : x
  2. Step 2: Convert to fraction form
    289,706,915.80/434,637,356.10 = 125,874,371.80/x
  3. Step 3: Cross multiply
    289,706,915.80x = 434,637,356.10 × 125,874,371.80
  4. Step 4: Simplify right side
    289,706,915.80x = 54,709,704,159,900,400
  5. Step 5: Solve for x
    x = 54,709,704,159,900,400/289,706,915.80
  6. Step 6: Final answer
    x = 188,845,005.68

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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.