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Finding the Fourth Proportional to 706,492,658.17, 974,942,048.83 and 388,949,733.96

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Solution

The fourth proportional to 706,492,658.17, 974,942,048.83 and 388,949,733.96 is: 536,740,822.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,492,658.17 : 974,942,048.83 = 388,949,733.96 : x
  2. Step 2: Convert to fraction form
    706,492,658.17/974,942,048.83 = 388,949,733.96/x
  3. Step 3: Cross multiply
    706,492,658.17x = 974,942,048.83 × 388,949,733.96
  4. Step 4: Simplify right side
    706,492,658.17x = 379,203,450,518,845,824
  5. Step 5: Solve for x
    x = 379,203,450,518,845,824/706,492,658.17
  6. Step 6: Final answer
    x = 536,740,822.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.