Home / 389,885,725.60-584,828,588.40-328,663,722.40

Finding the Fourth Proportional to 389,885,725.60, 584,828,588.40 and 328,663,722.40

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Solution

The fourth proportional to 389,885,725.60, 584,828,588.40 and 328,663,722.40 is: 492,995,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,885,725.60 : 584,828,588.40 = 328,663,722.40 : x
  2. Step 2: Convert to fraction form
    389,885,725.60/584,828,588.40 = 328,663,722.40/x
  3. Step 3: Cross multiply
    389,885,725.60x = 584,828,588.40 × 328,663,722.40
  4. Step 4: Simplify right side
    389,885,725.60x = 192,211,940,829,481,440
  5. Step 5: Solve for x
    x = 192,211,940,829,481,440/389,885,725.60
  6. Step 6: Final answer
    x = 492,995,583.60

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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.