Home / 28,483,543.40-42,725,315.10-18,911,805.80

Finding the Fourth Proportional to 28,483,543.40, 42,725,315.10 and 18,911,805.80

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Solution

The fourth proportional to 28,483,543.40, 42,725,315.10 and 18,911,805.80 is: 28,367,708.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,483,543.40 : 42,725,315.10 = 18,911,805.80 : x
  2. Step 2: Convert to fraction form
    28,483,543.40/42,725,315.10 = 18,911,805.80/x
  3. Step 3: Cross multiply
    28,483,543.40x = 42,725,315.10 × 18,911,805.80
  4. Step 4: Simplify right side
    28,483,543.40x = 808,012,861,915,007.62
  5. Step 5: Solve for x
    x = 808,012,861,915,007.62/28,483,543.40
  6. Step 6: Final answer
    x = 28,367,708.70

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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.