Home / 528,025,872.90-792,038,809.35-139,908,605.70

Finding the Fourth Proportional to 528,025,872.90, 792,038,809.35 and 139,908,605.70

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Solution

The fourth proportional to 528,025,872.90, 792,038,809.35 and 139,908,605.70 is: 209,862,908.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,025,872.90 : 792,038,809.35 = 139,908,605.70 : x
  2. Step 2: Convert to fraction form
    528,025,872.90/792,038,809.35 = 139,908,605.70/x
  3. Step 3: Cross multiply
    528,025,872.90x = 792,038,809.35 × 139,908,605.70
  4. Step 4: Simplify right side
    528,025,872.90x = 110,813,045,476,446,624
  5. Step 5: Solve for x
    x = 110,813,045,476,446,624/528,025,872.90
  6. Step 6: Final answer
    x = 209,862,908.55

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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.