Home / 887,679,977.16-1,223,995,906.26-663,944,642.94

Finding the Fourth Proportional to 887,679,977.16, 1,223,995,906.26 and 663,944,642.94

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Solution

The fourth proportional to 887,679,977.16, 1,223,995,906.26 and 663,944,642.94 is: 915,493,810.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,679,977.16 : 1,223,995,906.26 = 663,944,642.94 : x
  2. Step 2: Convert to fraction form
    887,679,977.16/1,223,995,906.26 = 663,944,642.94/x
  3. Step 3: Cross multiply
    887,679,977.16x = 1,223,995,906.26 × 663,944,642.94
  4. Step 4: Simplify right side
    887,679,977.16x = 812,665,524,941,817,472
  5. Step 5: Solve for x
    x = 812,665,524,941,817,472/887,679,977.16
  6. Step 6: Final answer
    x = 915,493,810.67

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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.