Home / 338,309,570.20-507,464,355.30-257,688,002.20

Finding the Fourth Proportional to 338,309,570.20, 507,464,355.30 and 257,688,002.20

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Solution

The fourth proportional to 338,309,570.20, 507,464,355.30 and 257,688,002.20 is: 386,532,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,309,570.20 : 507,464,355.30 = 257,688,002.20 : x
  2. Step 2: Convert to fraction form
    338,309,570.20/507,464,355.30 = 257,688,002.20/x
  3. Step 3: Cross multiply
    338,309,570.20x = 507,464,355.30 × 257,688,002.20
  4. Step 4: Simplify right side
    338,309,570.20x = 130,767,475,904,967,984
  5. Step 5: Solve for x
    x = 130,767,475,904,967,984/338,309,570.20
  6. Step 6: Final answer
    x = 386,532,003.30

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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.