Home / 817,381,702.40-1,226,072,553.60-728,697,977.60

Finding the Fourth Proportional to 817,381,702.40, 1,226,072,553.60 and 728,697,977.60

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Solution

The fourth proportional to 817,381,702.40, 1,226,072,553.60 and 728,697,977.60 is: 1,093,046,966.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,381,702.40 : 1,226,072,553.60 = 728,697,977.60 : x
  2. Step 2: Convert to fraction form
    817,381,702.40/1,226,072,553.60 = 728,697,977.60/x
  3. Step 3: Cross multiply
    817,381,702.40x = 1,226,072,553.60 × 728,697,977.60
  4. Step 4: Simplify right side
    817,381,702.40x = 893,436,590,199,187,584
  5. Step 5: Solve for x
    x = 893,436,590,199,187,584/817,381,702.40
  6. Step 6: Final answer
    x = 1,093,046,966.40

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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.