Home / 719,836,993.36-993,376,008.84-389,812,701.52

Finding the Fourth Proportional to 719,836,993.36, 993,376,008.84 and 389,812,701.52

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Solution

The fourth proportional to 719,836,993.36, 993,376,008.84 and 389,812,701.52 is: 537,942,046.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,836,993.36 : 993,376,008.84 = 389,812,701.52 : x
  2. Step 2: Convert to fraction form
    719,836,993.36/993,376,008.84 = 389,812,701.52/x
  3. Step 3: Cross multiply
    719,836,993.36x = 993,376,008.84 × 389,812,701.52
  4. Step 4: Simplify right side
    719,836,993.36x = 387,230,585,631,075,776
  5. Step 5: Solve for x
    x = 387,230,585,631,075,776/719,836,993.36
  6. Step 6: Final answer
    x = 537,942,046.88

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1.5x scale

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.