Home / 834,808,501.20-1,252,212,751.80-489,584,427.60

Finding the Fourth Proportional to 834,808,501.20, 1,252,212,751.80 and 489,584,427.60

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Solution

The fourth proportional to 834,808,501.20, 1,252,212,751.80 and 489,584,427.60 is: 734,376,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,808,501.20 : 1,252,212,751.80 = 489,584,427.60 : x
  2. Step 2: Convert to fraction form
    834,808,501.20/1,252,212,751.80 = 489,584,427.60/x
  3. Step 3: Cross multiply
    834,808,501.20x = 1,252,212,751.80 × 489,584,427.60
  4. Step 4: Simplify right side
    834,808,501.20x = 613,063,863,323,423,872
  5. Step 5: Solve for x
    x = 613,063,863,323,423,872/834,808,501.20
  6. Step 6: Final answer
    x = 734,376,641.40

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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.