Home / 528,039,565.40-792,059,348.10-309,794,461.40

Finding the Fourth Proportional to 528,039,565.40, 792,059,348.10 and 309,794,461.40

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Solution

The fourth proportional to 528,039,565.40, 792,059,348.10 and 309,794,461.40 is: 464,691,692.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,039,565.40 : 792,059,348.10 = 309,794,461.40 : x
  2. Step 2: Convert to fraction form
    528,039,565.40/792,059,348.10 = 309,794,461.40/x
  3. Step 3: Cross multiply
    528,039,565.40x = 792,059,348.10 × 309,794,461.40
  4. Step 4: Simplify right side
    528,039,565.40x = 245,375,599,141,474,592
  5. Step 5: Solve for x
    x = 245,375,599,141,474,592/528,039,565.40
  6. Step 6: Final answer
    x = 464,691,692.10

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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.