Home / 629,136,019.40-943,704,029.10-411,457,785.80

Finding the Fourth Proportional to 629,136,019.40, 943,704,029.10 and 411,457,785.80

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Solution

The fourth proportional to 629,136,019.40, 943,704,029.10 and 411,457,785.80 is: 617,186,678.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,136,019.40 : 943,704,029.10 = 411,457,785.80 : x
  2. Step 2: Convert to fraction form
    629,136,019.40/943,704,029.10 = 411,457,785.80/x
  3. Step 3: Cross multiply
    629,136,019.40x = 943,704,029.10 × 411,457,785.80
  4. Step 4: Simplify right side
    629,136,019.40x = 388,294,370,264,024,768
  5. Step 5: Solve for x
    x = 388,294,370,264,024,768/629,136,019.40
  6. Step 6: Final answer
    x = 617,186,678.70

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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.