Home / 7,220,101.40-10,830,152.10-6,436,280.60

Finding the Fourth Proportional to 7,220,101.40, 10,830,152.10 and 6,436,280.60

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Solution

The fourth proportional to 7,220,101.40, 10,830,152.10 and 6,436,280.60 is: 9,654,420.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220,101.40 : 10,830,152.10 = 6,436,280.60 : x
  2. Step 2: Convert to fraction form
    7,220,101.40/10,830,152.10 = 6,436,280.60/x
  3. Step 3: Cross multiply
    7,220,101.40x = 10,830,152.10 × 6,436,280.60
  4. Step 4: Simplify right side
    7,220,101.40x = 69,705,897,856,279.25
  5. Step 5: Solve for x
    x = 69,705,897,856,279.25/7,220,101.40
  6. Step 6: Final answer
    x = 9,654,420.90

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1.5x scale

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.