Home / 478,334,710.88-660,101,909.28-258,318,136.88

Finding the Fourth Proportional to 478,334,710.88, 660,101,909.28 and 258,318,136.88

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Solution

The fourth proportional to 478,334,710.88, 660,101,909.28 and 258,318,136.88 is: 356,479,033.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,334,710.88 : 660,101,909.28 = 258,318,136.88 : x
  2. Step 2: Convert to fraction form
    478,334,710.88/660,101,909.28 = 258,318,136.88/x
  3. Step 3: Cross multiply
    478,334,710.88x = 660,101,909.28 × 258,318,136.88
  4. Step 4: Simplify right side
    478,334,710.88x = 170,516,295,356,140,384
  5. Step 5: Solve for x
    x = 170,516,295,356,140,384/478,334,710.88
  6. Step 6: Final answer
    x = 356,479,033.36

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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.