Home / 7,280,911,405.80-10,921,367,108.70-7,208,351,994.60

Finding the Fourth Proportional to 7,280,911,405.80, 10,921,367,108.70 and 7,208,351,994.60

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Solution

The fourth proportional to 7,280,911,405.80, 10,921,367,108.70 and 7,208,351,994.60 is: 10,812,527,991.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280,911,405.80 : 10,921,367,108.70 = 7,208,351,994.60 : x
  2. Step 2: Convert to fraction form
    7,280,911,405.80/10,921,367,108.70 = 7,208,351,994.60/x
  3. Step 3: Cross multiply
    7,280,911,405.80x = 10,921,367,108.70 × 7,208,351,994.60
  4. Step 4: Simplify right side
    7,280,911,405.80x = 78,725,058,381,756,481,536
  5. Step 5: Solve for x
    x = 78,725,058,381,756,481,536/7,280,911,405.80
  6. Step 6: Final answer
    x = 10,812,527,991.90

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Double scale
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Similar ratio
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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.