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Finding the Fourth Proportional to 656,109,366.80, 983,492,203.80 and 383,339,728.40

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Solution

The fourth proportional to 656,109,366.80, 983,492,203.80 and 383,339,728.40 is: 574,617,058.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,109,366.80 : 983,492,203.80 = 383,339,728.40 : x
  2. Step 2: Convert to fraction form
    656,109,366.80/983,492,203.80 = 383,339,728.40/x
  3. Step 3: Cross multiply
    656,109,366.80x = 983,492,203.80 × 383,339,728.40
  4. Step 4: Simplify right side
    656,109,366.80x = 377,011,634,288,209,408
  5. Step 5: Solve for x
    x = 377,011,634,288,209,408/656,109,366.80
  6. Step 6: Final answer
    x = 574,617,058.32

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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.