Home / 398,607,312.30-597,910,968.45-360,343,560.30

Finding the Fourth Proportional to 398,607,312.30, 597,910,968.45 and 360,343,560.30

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Solution

The fourth proportional to 398,607,312.30, 597,910,968.45 and 360,343,560.30 is: 540,515,340.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,607,312.30 : 597,910,968.45 = 360,343,560.30 : x
  2. Step 2: Convert to fraction form
    398,607,312.30/597,910,968.45 = 360,343,560.30/x
  3. Step 3: Cross multiply
    398,607,312.30x = 597,910,968.45 × 360,343,560.30
  4. Step 4: Simplify right side
    398,607,312.30x = 215,453,367,113,693,984
  5. Step 5: Solve for x
    x = 215,453,367,113,693,984/398,607,312.30
  6. Step 6: Final answer
    x = 540,515,340.45

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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.