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Finding the Fourth Proportional to 72,765,875,105.70, 109,148,812,658.55 and 72,765,875,105.70

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Solution

The fourth proportional to 72,765,875,105.70, 109,148,812,658.55 and 72,765,875,105.70 is: 109,148,812,658.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,765,875,105.70 : 109,148,812,658.55 = 72,765,875,105.70 : x
  2. Step 2: Convert to fraction form
    72,765,875,105.70/109,148,812,658.55 = 72,765,875,105.70/x
  3. Step 3: Cross multiply
    72,765,875,105.70x = 109,148,812,658.55 × 72,765,875,105.70
  4. Step 4: Simplify right side
    72,765,875,105.70x = 7,942,308,869,847,496,261,632
  5. Step 5: Solve for x
    x = 7,942,308,869,847,496,261,632/72,765,875,105.70
  6. Step 6: Final answer
    x = 109,148,812,658.55

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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.