Home / 985,917,889.56-1,360,609,202.70-545,884,780.44

Finding the Fourth Proportional to 985,917,889.56, 1,360,609,202.70 and 545,884,780.44

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Solution

The fourth proportional to 985,917,889.56, 1,360,609,202.70 and 545,884,780.44 is: 753,344,536.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,917,889.56 : 1,360,609,202.70 = 545,884,780.44 : x
  2. Step 2: Convert to fraction form
    985,917,889.56/1,360,609,202.70 = 545,884,780.44/x
  3. Step 3: Cross multiply
    985,917,889.56x = 1,360,609,202.70 × 545,884,780.44
  4. Step 4: Simplify right side
    985,917,889.56x = 742,735,855,880,533,120
  5. Step 5: Solve for x
    x = 742,735,855,880,533,120/985,917,889.56
  6. Step 6: Final answer
    x = 753,344,536.85

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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.