Home / 399,187,643.40-550,672,607.06-252,594,957.96

Finding the Fourth Proportional to 399,187,643.40, 550,672,607.06 and 252,594,957.96

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Solution

The fourth proportional to 399,187,643.40, 550,672,607.06 and 252,594,957.96 is: 348,450,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,187,643.40 : 550,672,607.06 = 252,594,957.96 : x
  2. Step 2: Convert to fraction form
    399,187,643.40/550,672,607.06 = 252,594,957.96/x
  3. Step 3: Cross multiply
    399,187,643.40x = 550,672,607.06 × 252,594,957.96
  4. Step 4: Simplify right side
    399,187,643.40x = 139,097,124,030,044,288
  5. Step 5: Solve for x
    x = 139,097,124,030,044,288/399,187,643.40
  6. Step 6: Final answer
    x = 348,450,475.18

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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.