Home / 882,536,978.75-1,217,810,903.66-543,391,598.75

Finding the Fourth Proportional to 882,536,978.75, 1,217,810,903.66 and 543,391,598.75

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Solution

The fourth proportional to 882,536,978.75, 1,217,810,903.66 and 543,391,598.75 is: 749,824,913.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,536,978.75 : 1,217,810,903.66 = 543,391,598.75 : x
  2. Step 2: Convert to fraction form
    882,536,978.75/1,217,810,903.66 = 543,391,598.75/x
  3. Step 3: Cross multiply
    882,536,978.75x = 1,217,810,903.66 × 543,391,598.75
  4. Step 4: Simplify right side
    882,536,978.75x = 661,748,213,906,183,552
  5. Step 5: Solve for x
    x = 661,748,213,906,183,552/882,536,978.75
  6. Step 6: Final answer
    x = 749,824,913.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.