Home / 443,417,642.87-611,628,019.75-284,395,885.42

Finding the Fourth Proportional to 443,417,642.87, 611,628,019.75 and 284,395,885.42

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Solution

The fourth proportional to 443,417,642.87, 611,628,019.75 and 284,395,885.42 is: 392,281,396.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,417,642.87 : 611,628,019.75 = 284,395,885.42 : x
  2. Step 2: Convert to fraction form
    443,417,642.87/611,628,019.75 = 284,395,885.42/x
  3. Step 3: Cross multiply
    443,417,642.87x = 611,628,019.75 × 284,395,885.42
  4. Step 4: Simplify right side
    443,417,642.87x = 173,944,492,224,482,496
  5. Step 5: Solve for x
    x = 173,944,492,224,482,496/443,417,642.87
  6. Step 6: Final answer
    x = 392,281,396.61

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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.