Home / 402,987,839,644.95-604,566,666,909-130,690,856,425.65

Finding the Fourth Proportional to 402,987,839,644.95, 604,566,666,909 and 130,690,856,425.65

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Solution

The fourth proportional to 402,987,839,644.95, 604,566,666,909 and 130,690,856,425.65 is: 196,063,820,522.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,987,839,644.95 : 604,566,666,909 = 130,690,856,425.65 : x
  2. Step 2: Convert to fraction form
    402,987,839,644.95/604,566,666,909 = 130,690,856,425.65/x
  3. Step 3: Cross multiply
    402,987,839,644.95x = 604,566,666,909 × 130,690,856,425.65
  4. Step 4: Simplify right side
    402,987,839,644.95x = 79,011,335,464,737,885,388,800
  5. Step 5: Solve for x
    x = 79,011,335,464,737,885,388,800/402,987,839,644.95
  6. Step 6: Final answer
    x = 196,063,820,522.10

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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.