Home / 706,642,786.01-975,174,261.20-389,132,557.86

Finding the Fourth Proportional to 706,642,786.01, 975,174,261.20 and 389,132,557.86

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Solution

The fourth proportional to 706,642,786.01, 975,174,261.20 and 389,132,557.86 is: 537,006,903.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,642,786.01 : 975,174,261.20 = 389,132,557.86 : x
  2. Step 2: Convert to fraction form
    706,642,786.01/975,174,261.20 = 389,132,557.86/x
  3. Step 3: Cross multiply
    706,642,786.01x = 975,174,261.20 × 389,132,557.86
  4. Step 4: Simplify right side
    706,642,786.01x = 379,472,054,617,839,040
  5. Step 5: Solve for x
    x = 379,472,054,617,839,040/706,642,786.01
  6. Step 6: Final answer
    x = 537,006,903.82

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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.