Home / 620,958,082.10-931,437,123.15-528,629,065.70

Finding the Fourth Proportional to 620,958,082.10, 931,437,123.15 and 528,629,065.70

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Solution

The fourth proportional to 620,958,082.10, 931,437,123.15 and 528,629,065.70 is: 792,943,598.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,958,082.10 : 931,437,123.15 = 528,629,065.70 : x
  2. Step 2: Convert to fraction form
    620,958,082.10/931,437,123.15 = 528,629,065.70/x
  3. Step 3: Cross multiply
    620,958,082.10x = 931,437,123.15 × 528,629,065.70
  4. Step 4: Simplify right side
    620,958,082.10x = 492,384,736,169,080,320
  5. Step 5: Solve for x
    x = 492,384,736,169,080,320/620,958,082.10
  6. Step 6: Final answer
    x = 792,943,598.55

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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.