Home / 554,802,409.18-765,639,690.06-316,642,812.58

Finding the Fourth Proportional to 554,802,409.18, 765,639,690.06 and 316,642,812.58

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Solution

The fourth proportional to 554,802,409.18, 765,639,690.06 and 316,642,812.58 is: 436,974,138.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,802,409.18 : 765,639,690.06 = 316,642,812.58 : x
  2. Step 2: Convert to fraction form
    554,802,409.18/765,639,690.06 = 316,642,812.58/x
  3. Step 3: Cross multiply
    554,802,409.18x = 765,639,690.06 × 316,642,812.58
  4. Step 4: Simplify right side
    554,802,409.18x = 242,434,304,883,477,824
  5. Step 5: Solve for x
    x = 242,434,304,883,477,824/554,802,409.18
  6. Step 6: Final answer
    x = 436,974,138.67

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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.