Home / 399,636,020.80-599,454,031.20-382,417,332.40

Finding the Fourth Proportional to 399,636,020.80, 599,454,031.20 and 382,417,332.40

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Solution

The fourth proportional to 399,636,020.80, 599,454,031.20 and 382,417,332.40 is: 573,625,998.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,636,020.80 : 599,454,031.20 = 382,417,332.40 : x
  2. Step 2: Convert to fraction form
    399,636,020.80/599,454,031.20 = 382,417,332.40/x
  3. Step 3: Cross multiply
    399,636,020.80x = 599,454,031.20 × 382,417,332.40
  4. Step 4: Simplify right side
    399,636,020.80x = 229,241,611,507,930,368
  5. Step 5: Solve for x
    x = 229,241,611,507,930,368/399,636,020.80
  6. Step 6: Final answer
    x = 573,625,998.60

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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.