Home / 7,280,737,312.80-10,921,105,969.20-7,208,177,901.60

Finding the Fourth Proportional to 7,280,737,312.80, 10,921,105,969.20 and 7,208,177,901.60

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Solution

The fourth proportional to 7,280,737,312.80, 10,921,105,969.20 and 7,208,177,901.60 is: 10,812,266,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280,737,312.80 : 10,921,105,969.20 = 7,208,177,901.60 : x
  2. Step 2: Convert to fraction form
    7,280,737,312.80/10,921,105,969.20 = 7,208,177,901.60/x
  3. Step 3: Cross multiply
    7,280,737,312.80x = 10,921,105,969.20 × 7,208,177,901.60
  4. Step 4: Simplify right side
    7,280,737,312.80x = 78,721,274,708,219,297,792
  5. Step 5: Solve for x
    x = 78,721,274,708,219,297,792/7,280,737,312.80
  6. Step 6: Final answer
    x = 10,812,266,852.40

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Double scale
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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.