Home / 513,242,576.60-708,288,682.50-290,257,603.20

Finding the Fourth Proportional to 513,242,576.60, 708,288,682.50 and 290,257,603.20

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Solution

The fourth proportional to 513,242,576.60, 708,288,682.50 and 290,257,603.20 is: 400,563,368.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,242,576.60 : 708,288,682.50 = 290,257,603.20 : x
  2. Step 2: Convert to fraction form
    513,242,576.60/708,288,682.50 = 290,257,603.20/x
  3. Step 3: Cross multiply
    513,242,576.60x = 708,288,682.50 × 290,257,603.20
  4. Step 4: Simplify right side
    513,242,576.60x = 205,586,175,356,135,776
  5. Step 5: Solve for x
    x = 205,586,175,356,135,776/513,242,576.60
  6. Step 6: Final answer
    x = 400,563,368.53

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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.