Home / 386,347,998.40-579,549,991.20-232,663,134.40

Finding the Fourth Proportional to 386,347,998.40, 579,549,991.20 and 232,663,134.40

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Solution

The fourth proportional to 386,347,998.40, 579,549,991.20 and 232,663,134.40 is: 349,011,559.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,347,998.40 : 579,549,991.20 = 232,663,134.40 : x
  2. Step 2: Convert to fraction form
    386,347,998.40/579,549,991.20 = 232,663,134.40/x
  3. Step 3: Cross multiply
    386,347,998.40x = 579,549,991.20 × 232,663,134.40
  4. Step 4: Simplify right side
    386,347,998.40x = 134,839,917,494,084,432
  5. Step 5: Solve for x
    x = 134,839,917,494,084,432/386,347,998.40
  6. Step 6: Final answer
    x = 349,011,559.66

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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.