Home / 258,974,482.40-388,461,723.60-237,811,320.80

Finding the Fourth Proportional to 258,974,482.40, 388,461,723.60 and 237,811,320.80

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Solution

The fourth proportional to 258,974,482.40, 388,461,723.60 and 237,811,320.80 is: 356,716,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,974,482.40 : 388,461,723.60 = 237,811,320.80 : x
  2. Step 2: Convert to fraction form
    258,974,482.40/388,461,723.60 = 237,811,320.80/x
  3. Step 3: Cross multiply
    258,974,482.40x = 388,461,723.60 × 237,811,320.80
  4. Step 4: Simplify right side
    258,974,482.40x = 92,380,595,569,560,544
  5. Step 5: Solve for x
    x = 92,380,595,569,560,544/258,974,482.40
  6. Step 6: Final answer
    x = 356,716,981.20

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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.