Home / 20,506,210.20-30,771,125.10-7,735,879.80

Finding the Fourth Proportional to 20,506,210.20, 30,771,125.10 and 7,735,879.80

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Solution

The fourth proportional to 20,506,210.20, 30,771,125.10 and 7,735,879.80 is: 11,608,274.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506,210.20 : 30,771,125.10 = 7,735,879.80 : x
  2. Step 2: Convert to fraction form
    20,506,210.20/30,771,125.10 = 7,735,879.80/x
  3. Step 3: Cross multiply
    20,506,210.20x = 30,771,125.10 × 7,735,879.80
  4. Step 4: Simplify right side
    20,506,210.20x = 238,041,725,084,363
  5. Step 5: Solve for x
    x = 238,041,725,084,363/20,506,210.20
  6. Step 6: Final answer
    x = 11,608,274.90

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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.