Home / 402,987,839,637.50-604,566,666,897.60-130,690,856,418.20

Finding the Fourth Proportional to 402,987,839,637.50, 604,566,666,897.60 and 130,690,856,418.20

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Solution

The fourth proportional to 402,987,839,637.50, 604,566,666,897.60 and 130,690,856,418.20 is: 196,063,820,510.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,987,839,637.50 : 604,566,666,897.60 = 130,690,856,418.20 : x
  2. Step 2: Convert to fraction form
    402,987,839,637.50/604,566,666,897.60 = 130,690,856,418.20/x
  3. Step 3: Cross multiply
    402,987,839,637.50x = 604,566,666,897.60 × 130,690,856,418.20
  4. Step 4: Simplify right side
    402,987,839,637.50x = 79,011,335,458,743,990,091,776
  5. Step 5: Solve for x
    x = 79,011,335,458,743,990,091,776/402,987,839,637.50
  6. Step 6: Final answer
    x = 196,063,820,510.86

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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.