Home / 977,662,912.21-1,349,200,389.12-531,652,360.91

Finding the Fourth Proportional to 977,662,912.21, 1,349,200,389.12 and 531,652,360.91

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Solution

The fourth proportional to 977,662,912.21, 1,349,200,389.12 and 531,652,360.91 is: 733,694,163.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,662,912.21 : 1,349,200,389.12 = 531,652,360.91 : x
  2. Step 2: Convert to fraction form
    977,662,912.21/1,349,200,389.12 = 531,652,360.91/x
  3. Step 3: Cross multiply
    977,662,912.21x = 1,349,200,389.12 × 531,652,360.91
  4. Step 4: Simplify right side
    977,662,912.21x = 717,305,572,207,625,600
  5. Step 5: Solve for x
    x = 717,305,572,207,625,600/977,662,912.21
  6. Step 6: Final answer
    x = 733,694,163.14

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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.