Home / 528,039,561.40-792,059,342.10-309,794,457.40

Finding the Fourth Proportional to 528,039,561.40, 792,059,342.10 and 309,794,457.40

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Solution

The fourth proportional to 528,039,561.40, 792,059,342.10 and 309,794,457.40 is: 464,691,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,039,561.40 : 792,059,342.10 = 309,794,457.40 : x
  2. Step 2: Convert to fraction form
    528,039,561.40/792,059,342.10 = 309,794,457.40/x
  3. Step 3: Cross multiply
    528,039,561.40x = 792,059,342.10 × 309,794,457.40
  4. Step 4: Simplify right side
    528,039,561.40x = 245,375,594,114,470,464
  5. Step 5: Solve for x
    x = 245,375,594,114,470,464/528,039,561.40
  6. Step 6: Final answer
    x = 464,691,686.10

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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.