Home / 528,168,042,978.05-792,297,701,401.95-145,712,118,296.21

Finding the Fourth Proportional to 528,168,042,978.05, 792,297,701,401.95 and 145,712,118,296.21

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Solution

The fourth proportional to 528,168,042,978.05, 792,297,701,401.95 and 145,712,118,296.21 is: 218,580,767,858.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,168,042,978.05 : 792,297,701,401.95 = 145,712,118,296.21 : x
  2. Step 2: Convert to fraction form
    528,168,042,978.05/792,297,701,401.95 = 145,712,118,296.21/x
  3. Step 3: Cross multiply
    528,168,042,978.05x = 792,297,701,401.95 × 145,712,118,296.21
  4. Step 4: Simplify right side
    528,168,042,978.05x = 115,447,376,392,496,189,800,448
  5. Step 5: Solve for x
    x = 115,447,376,392,496,189,800,448/528,168,042,978.05
  6. Step 6: Final answer
    x = 218,580,767,858.56

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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.