Home / 7,280,731,042.80-10,921,096,564.20-7,208,171,631.60

Finding the Fourth Proportional to 7,280,731,042.80, 10,921,096,564.20 and 7,208,171,631.60

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Solution

The fourth proportional to 7,280,731,042.80, 10,921,096,564.20 and 7,208,171,631.60 is: 10,812,257,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280,731,042.80 : 10,921,096,564.20 = 7,208,171,631.60 : x
  2. Step 2: Convert to fraction form
    7,280,731,042.80/10,921,096,564.20 = 7,208,171,631.60/x
  3. Step 3: Cross multiply
    7,280,731,042.80x = 10,921,096,564.20 × 7,208,171,631.60
  4. Step 4: Simplify right side
    7,280,731,042.80x = 78,721,138,440,030,683,136
  5. Step 5: Solve for x
    x = 78,721,138,440,030,683,136/7,280,731,042.80
  6. Step 6: Final answer
    x = 10,812,257,447.40

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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.