Home / 528,025,889.40-792,038,834.10-139,908,622.20

Finding the Fourth Proportional to 528,025,889.40, 792,038,834.10 and 139,908,622.20

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Solution

The fourth proportional to 528,025,889.40, 792,038,834.10 and 139,908,622.20 is: 209,862,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,025,889.40 : 792,038,834.10 = 139,908,622.20 : x
  2. Step 2: Convert to fraction form
    528,025,889.40/792,038,834.10 = 139,908,622.20/x
  3. Step 3: Cross multiply
    528,025,889.40x = 792,038,834.10 × 139,908,622.20
  4. Step 4: Simplify right side
    528,025,889.40x = 110,813,062,007,825,376
  5. Step 5: Solve for x
    x = 110,813,062,007,825,376/528,025,889.40
  6. Step 6: Final answer
    x = 209,862,933.30

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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.