Home / 10,518,200.20-15,768,084.30-7,141,457.80

Finding the Fourth Proportional to 10,518,200.20, 15,768,084.30 and 7,141,457.80

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Solution

The fourth proportional to 10,518,200.20, 15,768,084.30 and 7,141,457.80 is: 10,705,929.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,518,200.20 : 15,768,084.30 = 7,141,457.80 : x
  2. Step 2: Convert to fraction form
    10,518,200.20/15,768,084.30 = 7,141,457.80/x
  3. Step 3: Cross multiply
    10,518,200.20x = 15,768,084.30 × 7,141,457.80
  4. Step 4: Simplify right side
    10,518,200.20x = 112,607,108,615,292.55
  5. Step 5: Solve for x
    x = 112,607,108,615,292.55/10,518,200.20
  6. Step 6: Final answer
    x = 10,705,929.39

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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.